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zloy xaker [14]
2 years ago
13

What is the answer for all of them I don't know what to do

Mathematics
2 answers:
Anuta_ua [19.1K]2 years ago
7 0
5/30=1/6
4/28=1/7
16/18=8/9
7/35=1/5
9/15=3/5
3/12=1/4
ahrayia [7]2 years ago
7 0
1. 1
2. 7
3. 8
4. 1
5. 5
6. 4
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1. What is the relationship of ratios and proportions? Give an example of a proportion.
shepuryov [24]
Ratio is the comparison of sizes of two quantities of the same unit. Proportions are the equality of two ratios. A/b =c/d
3 0
3 years ago
Please help it is about precent of change. ( highest number of points )
katen-ka-za [31]

Answer:

185.714% increase

Step-by-step explanation:

Solution:

Calculate percentage change

from V1 = 14 to V2 = 40

(2−1)|1|×100

=(40−14)|14|×100

=2614×100

=1.85714×100

=185.714%change

=185.714%increase

3 0
3 years ago
A car braked with a constant deceleration of 64 ft/s2, producing skid marks measuring 50 ft before coming to a stop. How fast wa
vitfil [10]

Answer:

The initial speed of the car was 80 ft/s.

Step-by-step explanation:

The deceleration is the rate at which the car speed decreases. In this case the speed of the car goes all the way down to 0 ft/s and in order to do that it travelled 50 ft.  So we will call the initial speed at which the car started to brake "v_0" and use Torricelli's equation to find it. The equation is given by:

v^2 = (v_0)^2 + 2*a*S

Where v is the final speed, v_0 is the initial speed, a is the rate of acceleration and S is the space travelled. Using the values that the problem gave to us we have:

0^2 = (v_0)^2 - 2*64*50

0 = (v_0)^2 - 6400

(v_0)^2 = 6400

v_0 = sqrt(6400) = 80 ft/s

Notice that in this case "a" was negative, since the car was decelerating instead of accelerating.

The initial speed of the car was 80 ft/s.

4 0
3 years ago
Read 2 more answers
Need help with this! Explain it to plz
nikitadnepr [17]
5^0 x 5^4      1 x 625    625
------------- =  ---------- = ----- = 1 B
5^3 x 5^1      125 x 5    625
3 0
3 years ago
Please explain this and help me
suter [353]
Juan rode the slowest. It took him 5 minutes to go 2 blocks and another 3 minutes to go 2 more blocks. It was taking him longer minutes to go 2 blocks at a time. Took Juan 17 minutes to do 8 blocks and Rita did 8 blocks in 8 minutes she was faster. Hope this helps
8 0
2 years ago
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