Step-by-step explanation:
If he got 9 questions wrong on a 75 multiple choices test, that means he got 66 right. That means the ratio to the questions he got correct to the questions he got incorrect is 66:9, or 22:3 simplified.
Write 5 ratio equivalent to 9:13?
Answer:
18:2627:3936:5245:6554:78Step-by-step explanation:
Given ratio,
→ 9:13
The 5 equivalent ratios are,
→ (9 × 2):(13 × 2) = 18:26
→ (9 × 3):(13 × 3) = 27:39
→ (9 × 4):(13 × 4) = 36:52
→ (9 × 5):(13 × 5) = 45:65
→ (9 × 6):(13 × 6) = 54:78
Hence, these are the ratios.
What is the product?
−0.05⋅2412
Answer:
-1.225
Step-by-step explanation:
You basically multiply both numbers together.
The product of the given expression is -1.225
What is the fundamental principle of multiplication?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
We are given that expression
−0.05 x 24 1 /2
We have;
−0.05 x 45/2
= -1.225
Hence, The product of the given expression is -1.225
Learn more about multiplications;
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Convert 24/25 into percentage?
Answer:
96%
Step-by-step explanation:
The speed limit on an interstate highway is 65 miles per hour.
Which cars are driving at or below the speed limit?
Answer:
There are 5,280 feet in a mile.
There are 60 minutes in an hour.
As a quick check, does this answer look correct? If you were travelling 5 miles per hour slower, at a steady 60 mph, you would be driving 60 miles every 60 minutes, or a mile a minute. If you're driving 65 miles per hour, then, you ought to be going just over a mile a minute — specifically, 1 mile and 440 feet.
While it's common knowledge that an hour contains 60 minutes.
Step-by-step explanation:
If your car is traveling 65 miles per hour, then it is also going 343,200 feet (65 × 5,280 = 343,200) per hour. Then, you can divide the total feet per hour by 60, and you know that your car is traveling 5,720 feet per minute.
Answer:
WHat cars!?
Step-by-step explanation:
Which story problem could be solved using the given equation?
For a craft project you need 114 inches of ribbon, but it is only sold by the meter. Determine the amount of ribbon, in meters, you need to buy for the project. (1 inch = 2.54 centimeters and 1 centimeter = 0.01 meter)
29
290
3
12
Write the main features of the right-angled triangle and list some of its properties.
Answer: A right angle is also equal to 90 degrees The sides that include the right angle are perpendicular and the base of the triangle. The third side is called the hypotenuse, which is the longest side of all three sides.
Convert the following decimals into percentages:
0.004, 0.26 & 0.58
Step-by-step explanation:
Convert the following decimals into percentages:
0.004 * 100 = 0.4%
0.26 * 100 = 26%
0.58 * 100 = 58%
A soda dispenser puts out 6 ounces of orange soda to every 8 ounces of cola.
How do you express the ratio 6:8 as a unit rate?
Step-by-step explanation:
6+8= 14
6/14×100=3/7×100=300/7=42.85
8/14×10=4/7×100=400/7=57.14
Answer:
0.75
Step-by-step explanation:
in a unit rate the denominator is always 1. So, to find unit rate divide the denominator with the numerator in a way that the denominator becomes 1.
If xx and y vary directly and y is 21 when x is 7, find y when x is 5
Answer:
y = 15
Step-by-step explanation:
We need to solve for k
y = x
21 = 7k Divide both sides by 7 to solve for k
3 = k
y = xk
y = 5(3)
y = 15
Answer: y = 15
Step-by-step explanation:
Which is an equation of a direct proportion?
The correct answer is y = -2x.
Direct proportion can also be known as Direct variation. When the ratio of two quantities equals constant, we call it Direct Proportion. Direct Proportion is denoted by [tex]\alpha[/tex] .
Let us consider two quantities a and b, then the direct proportion between a and b can be expressed as,
a [tex]\alpha[/tex] b
=> [tex]a/b = k[/tex] ( where k is constant)
=> [tex]a = kb[/tex] [tex]--- >[/tex] 1
Substitute a=x and b=y in 1, and then we get
[tex]x = ky[/tex]
Therefore, the general form of an equation which satisfies direct proportion is x = ky.
[tex]y=1/2x-2, y=-2x+3,y=4/x[/tex] are not in the form of [tex]x = ky[/tex].
So, The equation of direct proportion is y = -2x.
To know more about direct proportion:
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Of the pizzas sold last week at Luna's Pizzeria, 1/2 were large pizzas and 1/4 were extra-large pizzas. What fraction of the pizzas sold were either large or extra-large?
Answer:
4/8, and 2/8
Step-by-step explanation:
What is the product in simplest form?
Answer:
c) -20/27
Step-by-step explanation:
Given problem,
→ (-8/9) × (5/6)
Then the product will be,
→ (-8/9) × (5/6)
→ (-8 × 5)/(9 × 6)
→ -40/54
→ -20/27
Hence, answer is -20/27.
Draw a right-angled isosceles triangle and write its measures.
Answer:
45 ∘,45 ∘ ,90 ∘
Step-by-step explanation:
Since, the angle is right angled isosceles triangle. One of the angles will be 90 ∘
. let the other two angles be x
Thus, sum of angles = 180
90+x+x=180
2x=90
x = 45 ∘
The measure of each angle is: 45 ∘ ,45 ∘ ,90 ∘
___________
pls give me
brainlistttt
i will give brainliest
Probabilities can be expressed as a ratio of the total who fit the criteria and the total who do or do not. In other words, true/total. Here, there are 9 who wear green and 26 who do not. So, the probability is 9/26.
Fill in the missing digits to complete the division problem. CLEAR CHECK 9 3 | 3 2 7 6 9 − 2 7 ↓ ↓ 0 6 − 0 0 − 0
Grant uses 3 pounds of ground beef to make 12 hamburger patties.
What is the rate of pounds per patty?
Answer:
0.25 pounds
Step-by-step explanation:
3 : x = 12 : 1
x = 3/12
x = 1/4
x = 0.25 pounds
Answer:
0.25!
Step-by-step explanation:
A school charges $120 for 8 tickets to the class play.
What is the price per ticket?
Answer: $15
Step-by-step explanation: To solve this, just divide 120 by 8:
120÷8=15
hope this helps!
please give brainliest!
Multiply.
(−2.1)⋅(−1.4)
Answer:
(-2.1) x (-1.4) = 2.94
Step-by-step explanation:
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
I need help with this can you please help.↑↓
Answer:
O = 8
K = 0
L = 1
V = 7
I = 2
M = 4
H = 9
E = 6
T = 9
N = 5
Step-by-step explanation:
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
Answer:
1) O = 8
2) K = 0
3) L = 1
4) V = 7
5) I = 2
6) M = 4
7) H = 9
8) E = 6
9) T = 9
10) N = 5
Step-by-step explanation:
What is the product?
Answer:
-3/16
Step-by-step explanation:
Given problem,
→ (3/8) × (-3/6)
Let's solve the problem,
→ (3/8) × (-3/6)
→ (3 × -3)/(8 × 6)
→ -9/48
→ -3/16
Hence, answer is -3/16.
Answer:
[tex]\frac{1}{8}*(-\frac{3}{2})\\ =-\frac{3}{16}[/tex]
Step-by-step explanation:
need rnnn plss help
Harry is training for a cross-country track event. The table shows the proportional relationship between his distance and time.
Distance (miles) 0.4 1.6 ?
Time (minutes) 4.8 19.2 28.8
How many miles can Harry run in 28.8 minutes?
3 miles
2.4 miles
2.1 miles
2 miles
If x and y are in direct proportion and y is 80 when x is 10, find y when xx is 15.
Answer:
y = 120
Step-by-step explanation:
If x = y, they can be written as a fraction to show their proportionality as [tex]\frac{10}{80}[/tex]. This is equal to [tex]\frac{1}{8}[/tex], so when x = 1, y = 8. To find when y is equal to x when x = 15, just multiply y by 15. 15(8) = 120, so y = 120 when x = 15.
Answer:
120
Step-by-step explanation:
set up a proportion: 80/10=y/15
solve: 80*15=10y
1200=10y
y=120
plss need rnnn
The table shows a proportional relationship between x and y.
x 12 18 30
y 4 6 10
Describe the graph of the proportional relationship, in words.
A line beginning at point (12, 4) and continuing through the point (10, 30).
A line beginning at point (12, 4) and continuing through the point (6, 18).
A line beginning at point (0, 0) and continuing through the point (30, 10).
A line beginning at point (0, 0) and continuing through the point (4, 12).
A line beginning at point (0,0) and continuing to (30,10)
A proportional relationship will always go through the origin so you can eliminate the first two. In the last one the second coordinate is (4,12) which is wrong because the x is 12 and the y is 4. So that is how you know the 3rd option is correct :)
Answer:
A line beginning at point (0,0) and continuing to (30,10)
Step-by-step explanation:
I took the exam and got it right
The area of a garden is 12.9 square feet. Each square foot of the garden needs to have 2.6 pounds of soil.
How many pounds of soil are needed for the garden?
What is the value of this expression?
{5×(13−8)}+12÷6
HELP NOW PLSSSS
Answer:
27.
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
[5x 13-8)]+12/6
=[5x(5)]+12/6
=25+2
= 27
3 divided by 1/9 show work:
Answer:
3 divided by 1/9 equals 27.
Answer: 27
Step-by-step explanation:
3 ÷ 1/9 =
(3/1)(9/1)
=27
Hope this helps!!! :)
solve the following proportion
x/2 = 8/9
Answer:
[tex]\huge\boxed{\sf x = 16/9}[/tex]
Step-by-step explanation:
Given proportion:[tex]\displaystyle \frac{x}{2} =\frac{8}{9} \\\\Cross \ Multiply\\\\x \times 9=2\times 8\\\\9x = 16\\\\Divide \ 9 \ to \ both \ sides\\\\x = 16/9\\\\\rule[225]{225}{2}[/tex]
Please Answer Today!!!
Answer:
57 90
Step-by-step explanation:
it is right trust me
Answer:
Marc: 8 meters & 4 seconds
Prisha: 6 meters & 3 seconds
Step-by-step explanation:
Marc: If Marc travels 8 meters in 4 seconds it means that he has a speed of 2m/s
Prisha: If Prisha travels 6 meters in 3 seconds it means that she has a speed of 2m/s
To find speed we simply have to divide distance by time
The way that I figure out the answer was by trial and error. This is when we have to get random numbers and try them.
2 seemed a reasonable answer as it couldn't a number such as 5 as there is only 1 factor of 5 between 0 and 9. There are 4 factors of 2 between 0 and 9
Hope this helps, have a great day!!
