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Helga [31]
3 years ago
15

What is a equivalent ratio to 7:5. A. 14:12. B.21:10. C.21:15

Mathematics
1 answer:
larisa [96]3 years ago
6 0
The answer is C. This is because if you multiply 7:5 by 3, you get 21:15.
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Frank started out in his car travelling 45 mph. When Frank was 1/3 miles away, Daniel started out from the same point at 50 mph
Anna007 [38]

Time taken by Daniel to catch up with Frank is 4 minutes.

Step-by-step explanation:

The question is on relative speed; speed of a moving object with respect to another.

The two cars are travelling in the same direction at different speeds thus;

Relative speed = speed of Daniel - speed of Frank = 50-45= 5 mph

The time which the two meet = distance/ relative speed

Distance = 1/3 miles, which equals 0.33 miles

Time taken by Daniel to catch up with Frank is = 0.33/5 =0.066 hours = 4 minutes.

Learn More

Relative speed: brainly.com/question/10681729

Keywords: car, travelling, miles,started at the same point,catch up with

#LearnwithBrainly

6 0
3 years ago
Read 2 more answers
(x+3)(x-3) sum of difference​
matrenka [14]
4x-sum to
The value of 7
Equals3
5 0
3 years ago
Hurry! What 2 numbers add up to equal 22 and multiply by each other to get 40? They have to be the same numbers
ahrayia [7]

Answer:20 & 2

Step-by-step explanation:

20 x 2 =40

20+2=22

6 0
3 years ago
Problem 5
hjlf

Answer:

Acute Angled Triangle.

Right-Angled Triangle.

Obtuse Angled Triangle

Step-by-step explanation:

a right angle would be 90° angle

obtuse would be over 90°

acute would be smaller than 90°

hope this helps!

8 0
3 years ago
Who can help me with this
Lady bird [3.3K]

Answer:

Growth

Step-by-step explanation:

Given

\frac{2}{3}(2.5)^x

Required

Growth or decay

The general form is:

y = ab^x

Such that:

b = rate

For b, we have the following conditions:

b > 1 ----- Growth

0 --- Decay

b = 1 ---- None

Compare \frac{2}{3}(2.5)^x to y = ab^x

b = 2.5

<em>Because 2.5 > 1, then the first condition applies (growth)</em>

3 0
3 years ago
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