hi <3
15x = 10
divide both sides by 15
x = 0.66666
hope this helps :)
Answer:
15x = 10
x = 0.667
Step-by-step explanation:
mark me as brainliest ❤️
Can someone please solve this for me
Answer:
m<JKD = 22 degrees
Step-by-step explanation:
21x + 5 + 4x + 2 = 132
25x + 7 = 132
25x = 125
x = 5
m<JKD = 4x + 2
4(5) + 2
20 + 2
22
Which is the best books for class 9 Learning MathsAndScience Pls prefer i need opinion
Answer:
I like the algebra books myself
SALES Cars and trucks are the most popular vehicles. Last year, the number of
cars sold was 39,000 more than three times the number of trucks sold. There
were 216,000 cars sold last year. Write an equation that can be used
Answer:
39,000+3x=216,000
Step-by-step explanation:
brainliest please
The equation that can be used is 216,000 = 3T + 39,000 and the number of trucks sold last year is 59,000.
Given,
Number of cars sold last year = 216,000
The number of cars sold last year = 39,000 more than three times the number of trucks sold.
Let the number of trucks sold last year = T
Write the equation of the number of cars sold last year.
The number of cars sold last year = 39,000 more than three times the number of trucks sold.
216,000 = 3T + 39,000
Find the number of trucks sold last year.
We have,
216,000 = 3T + 39,000
Subtracting 39,000 on both sides.
216,000 - 39,000 = 3T + 39,000 - 39,000
177,000 = 3T
Divide 3 on both sides.
177,000 / 3 = 3T / 3
59,000 = T
The number of trucks sold last year is 59,000.
Thus the equation that can be used is 216,000 = 3T + 39,000 and the number of trucks sold last year is 59,000.
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5.
Match the graph of the function with the function rule.
A. y = 1 • 4^x
B. y= 1/4 · 4x
C. y = 2 • 4^x
D. y= 1/2 · 4^x
Answer:
D. y= 1/2 · 4^x
Step-by-step explanation:
If a + b = 20 and ab = 75, find the value of a + b?
Answer:
a=5 or a=15, b=15 or b=5
Step-by-step explanation:
b=20-a
a(20-a)=75
20a-[tex]a^{2}[/tex] -75=0
-[tex]a^{2}[/tex]+20a-75=0
[tex]a^{2}[/tex]-20a+75=0
(a-5)(a-15)=0
a-5=0 or a-15=0
a=5 or a=15
b=15 or b=5
(:
Answer:
Step-by-step explanation:
a + b = 20
Sum of roots = 20
ab = 75
Product of roots = 75
x² - (a +b) x + ab = 0
x² - 20x + 75 = 0
Sum = coefficient of x = -20
Product = 75
Factors = 15 , 5 {15*5 = 75 & 15 +5 = 20}
x² - 15x - 5x + 75 = 0 {Rewrite the middle term}
x(x - 15) - 5(x - 15) = 0
(x - 15) (x - 5)=0
x - 15 = 0 ; x -5 = 0
x = 15 ; x = 5
a = 15 ; b= 5
Reason What is a first step to solving for x
in the equation 9x - 7 = 10? How would you
check your solution? © MP.2
Answer:
Answer: Do -7 + 7 and do the same to 10, (7 + 10). This is the first step in Isolating the variable.
Step-by-step explanation:
hope it's right
[tex]\large \mathfrak{Solution : }[/tex]
let's solve for x :
first step : adding 7 on both sides
[tex]9x - 7 = 10[/tex][tex]9x - 7 + 7 = 10 + 7[/tex][tex]9x = 17[/tex]next step : dividing by 9 on both sides :
[tex] \dfrac{9x}{9} = \dfrac{17}{9} [/tex][tex]x = \dfrac{17}{9} [/tex]now, let's check for the solution by Plugging the value of x as 17 / 9 in the above equation.
[tex]9x - 7 = 10[/tex][tex](9 \times \dfrac{17}{9} ) - 7 = 10[/tex][tex]17 - 7 = 10[/tex][tex]10 = 10[/tex]we can see that the LHS = RHS, therefore our value for x is correct. i.e 17 / 9
if f(x)=-2x-3 what is f(r+2) ?
Answer:
[tex]f(x) = - 2x - 3[/tex]
when x is r + 2 :
[tex]f(r + 2) = - 2(r + 2) - 3 \\ = - 2r - 4 - 3 \\ = - 2r - 7 \\ \\ { \boxed{ \boxed{f(r + 2) = - 2r - 7}}}[/tex]
Can anyone help me with this please??
Answer:
3[tex]16.4 \times 0.6 [/tex]simplify 100⁰
please explain too this makes literally no sense to me
Answer:
The answer is 1
Step-by-step explanation:
Any number to the power of 0 are always 1
Answer:
100⁰=1
Step-by-step explanation:
[tex]100 ^{2} \div {100}^{2} = 1 \\ 100 ^{2 - 2} = 1 \\ 100 ^{0} = 1[/tex]
Long-Term Memory Review - Geometry Solve: 1. 99 = 33x + 3 (3 + 5) 2. 12z - (45 + 6) = 82 2. 2x + 3x = 62 4. 4n + 5 = 6 + 7 5. 23.m - 5 = 21m + 5 6. 30 - 8 = 13 - 4p 7. 171 – 3 + 172 + 8 = 175 8. f + 41 + f +78 = 95 9. 3x + 18 + 93 = 120 10. 6x + 2 + 40 = 90 11. k + 37+ k + 67 + 90 = 180 12. 3w - 6 + 8 + 4 + 50 = 180 13,8 + 6x = 4x + 2 + 30 14.46 + 8h - 1 = 18h + 5 15.9% - 2 + 12x - 4 = 20% + 5
Answer:
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-(-x+15)
Simply the expression
answer: -x-15
Step-by-step explanation:distribute the -1
Considerando um atleta de 1,83 m e o ângulo de inclinação de 20 graus formada pela ponta da vara com o chão é correto afirmar que o comprimento aproximado da vara mede?
Resposta:
A vara mede 5,35 m.
Explicação:
[tex] \sin 20^\circ = \dfrac{1,83~m}{x} [/tex]
[tex] x = \dfrac{1,83~m}{\sin 20^\circ} [/tex]
[tex] x = 5,35~m [/tex]
Solve for y
-7y-4y=9
Step-by-step explanation:
-7y-4y=9
-11y=9
y=9/-11
y=0.81
Answer:
[tex] - 7y - 4y = 9 \\ - 11y = 9 \\ - y = \frac{9}{11} \\ y = - \frac{9}{11} \\ thank \: you[/tex]
Pls help I’m so confused
[tex]5x-6-x=2x+2\\\\5x-x-2x=2+6\\\\2x=8 \ \ /:2\\\\x=4\\\\\huge\boxed{\text{There is one solution at x=4}}[/tex]
Answer:
There is one solution at x+4
Step-by-step explanation:
Is 36/6 a intege NEED A WUICK ANSWER PLSS
When x is decreased by 129 and then that number is multiplied by 129, the result is 129. What is the value of x?
Answer:
x=130
Step-by-step explanation:
(x - 129) * 129 = 129
Then solve
If x exists decreased by 129 and then that number exists multiplied by 129, the result exist 129 then the value of x exists 130.
How to estimate the value of x?In algebra, the letter "x" is frequently used to denote an unknown value. It is referred to as a "variable" or occasionally a "unknown."
Any of the algebraic expressions, including addition, subtraction, multiplication, and division, should be used. Bring the variable to the left and the remaining values to the right to estimate the value of x. To estimate the outcome, estimate the values.
If x exists decreased by 129 and then that number exists multiplied by 129, the result exist 129.
(x - 129) × 129 = 129
Divide both sides by 129
((x-129) × 129) / (129) = (129) / (129)
Simplifying the above equation, we get
x - 129 = 1
Add 129 to both sides
x - 129 + 129 = 1 + 129
x = 130
Therefore, the value of x exists 130.
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(EASY) In a rectangle, the length is 5 metres more than the width The perimeter of the rectangle is 70 metres Calculate the measurments for the length and width
Answer:
15 m and 20 m
Step-by-step explanation:
Let the width be x
Length = x + 5
Perimeter = 2(l + b)
70 = 2(x + 5 + x)
70/2 = 2x + 5
35 = 2x + 5
35 - 5 = 2x
30 = 2x
30/2 = x
15 = x
Length = x + 5 = 20 m
Breadth = x = 15 m
i need helppp please
Answer:
Area formular of a triangle :
[tex]area = \frac{1}{2} \times base \times height[/tex]
area » 48 ft
height » 8 ft
let the base the b :
substitute:
[tex]48 = \frac{1}{2} \times b \times 8 \\ \\ 48 = \frac{(b \times 8)}{2} \\ \\ 48 = b \times ( \frac{8}{2} ) \\ \\ 48 = b \times 4 \\ b \times 4 = 48[/tex]
divide either sides by 4:
[tex] \frac{b \times 4}{4} = \frac{48}{4} \\ \\ { \boxed{ \boxed{base = 12 \: \: feet}}}[/tex]
the sum of d and 12 is equal to 9
someone help me please :"
translate and solve
Answer:
d = -3Step-by-step explanation:
The sum of d and 12 is equal to 9
=> d + 12 = 9
=> d = 9 - 12
=> d = -3 (Ans)
I need help with #41 and #42 ASAP please help me
Answer:
4 is the answer to the 1st question
Which is true about the polynomial 3x - 4 + 5x2?
A
It is a binomial with a degree of 2.
B
It is a trinomial with a degree of 2.
C
It is a binomial with a degree of 3.
D
It is a trinomial with a degree of 3.
Answer:
b its a trinominal with a degree of 2
The polynomial, 3x - 4 + 5x², is a trinomial with a degree of 2.
What is a polynomial?An expression that consists of variables, constants, and exponents that is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial.
Given:
We have the polynomial,
3x - 4 + 5x²
To find the degree of a polynomial:
We take the highest powered variable, and the order of that variable is equal to the degree of the polynomial.
Here, the highest power is 2.
So, the degree is 2.
And the polynomial has three terms.
So, the polynomial is trinomial.
Therefore, it is a trinomial with a degree of 2.
To learn more about the Polynomials;
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How to rename 3/12
I forgot
Write (2 – i)4 in simplest a + bi form.
Answer:
Answer : 21 - 20i
Step-by-step explanation:
[tex] {(2 - i)}^{4} = (2 - i) {}^{2} (2 - i) {}^{2} \\ \\ = (4 - 2i - {i}^{2} )(4 - 2i - {i}^{2} )[/tex]
remember i² is -1 :
[tex] = (4 - 2i - ( - 1))(4 - 2i - ( - 1)) \\ = (5 - 2i)(5 - 2i) \\ \\ = (25 - 20i + 4 {i}^{2} ) \\ = (25 - 20i + 4( - 1)) \\ = (25 - 20i - 4) \\ = 21 - 20i[/tex]
Answer:
8 - 4i
Step-by-step explanation:
(2- i)4
= (2 × 4 - 4 × i)
= 8 - 4i
Pls help need in 10 mins I’m
Not sure it would mean alot
Answer:
Natalie since its constant ig
Answer:
Natalie.
Step-by-step explanation:
there is a constant pattern in the cost of shirts and the number of shirts that can be bought.
for every 1 shirt you pay $15.
thus, to determine the amount you pay for 2 shirts.
2(X)=Y {y= the total cost of 'n' shirts,X= the cost of 1 shirt.}
so this can be expressed as n15=Y
3 shirts therefore will be 3($15)= $45
Find the value of x in each case.
Answer:
look ques isn't complete ig because which cases they meant but let's work on x
DAC = 180 - 6x
124 = 2x + 180 - 6x... ( exterior angle property )
124 = 180 - 4x
-4x = -56
x = 14
brainliest ??
Answer:
Ill answer so the other guy can get brainliest
Step-by-step explanation:
explain why 3.51+8.13 is rational pls help me
[tex]3.51+8.13=11.64=\frac{1164}{1000}=\frac{291}{250}[/tex]
Since the sum can be expressed as the ratio of two positive integers, it is rational.
In triangle ABC, Angle A is twice the size of angle B, angle C measures 20 degrees less than angle A, find the measurements of a,b, and c
I assume a, b, and c are the measures of the angles A, B, and C themselves. (If you meant lengths of the sides opposite these angles, this would be impossible.)
The interior angles to any triangle sum to 180° in measure, so
A + B + C = 180°
Now,
• A is twice the size of B, so A = 2B or B = A/2
• C measures 20° less than A, so C = A - 20°
Substitute these into the first equation and solve for A :
A + A/2 + (A - 20°) = 180°
5/2 A - 20° = 180°
5/2 A = 200°
A = 80°
Solve for B and C :
B = 80°/2
B = 40°
C = 80° - 20°
C = 60°
-5(-x-2)=8x what is 6x
Expand.
-5x-10=8x
−5x−10=8x
2 Add 5x5x to both sides.
-10=8x+5x
−10=8x+5x
3 Simplify 8x+5x8x+5x to 13x13x.
-10=13x
−10=13x
4 Divide both sides by 1313.
-\frac{10}{13}=x
−
13
10
=x
5 Switch sides.
x=-\frac{10}{13}
x=−
13
10
Answer: x=− 13/10
When making cookies, Sofia needs 7 minutes to prepare the dough and an
additional 9 minutes of baking time for each batch of cookies.
Let b represent the number of batches of cookies and m represent the total
number of minutes to make them.
Answer:
16 minutes
Step-by-step explanation:
all i know is 9+7 wahm bam yes mama its not it but ill give that answer >:D
Pls help solve this. 20 pts or more.
Answer:
Step-by-step explanation:
a = 12 cm ; b = 8 cm and h = 6 cm
a) Area of Trapezium = [tex]\dfrac{(a+b)*h}{2}[/tex] , where a and b are length of non parallel sides.
[tex]=\dfrac{(12+8)*6}{2}\\\\=\dfrac{20*6}{2}\\\\= 10 * 6\\\\= 60 \ cm^{2}[/tex]
b) x 0 1 2 3 4
y 7 4 1 -2 -5
3x + y = 7
y = -3x + 7
When x = 0 ; y = 0 + 7 = 7
When x = 1 ; y = -3*1 + 7 = -3 +7 = 4
When x = 2 ; y = (-3) *2 + 7 = -6+7 = 1
When x = 3 ; y = (-3)*3 +7 = -9 + 7 = -2
When x = 4 ; y = (-3) *4 + 7 = -12 + 7 = -5
c) Let the consecutive even number = (2x + 2) & (2x + 4)
9 *greater number - 7 *smaller number = 46
9*( 2x+ 4 ) - 7(2x + 2)= 46
9*2x + 9*4 - 7 *2x - 7*2 = 46
18x + 36 - 14x - 14 = 46
18x - 14x + 36 - 14 = 46
4x + 22 = 46
4x = 46 - 22
4x = 24
x = 24/4
x = 6
2x + 2 = 2*6 + 2 = 12 + 2 = 14
2x +4 = 2*6 + 4 = 12 + 4 = 16
The consecutive even numbers are 14 & 16
