3 years ago

7/a = 28/40 how to do this

1 answer:

3 0

So first we cross multiply

7/a times 7/40 which equals = 28a and 280

Divided both sides by 28.
28a divided by 28 = A. Then 280 divided = 10

So a = 10

You might be interested in

A cheetah ran 196 meters in 8 seconds. Select the TWO correct statements that are true if the cheetah runs at a constant rate.

Nata [24]

Answer

. The cheetah ran 24.5 meters per second.

Step-by-step explanation:

Its that one because if you divide the meters by seconds which is 196/8 you would get 24.5 meters per second

6 0

3 years ago

Read 2 more answers

What is the probability of spinning the spinner below once and having it land on blue or an even number?

spayn [35]

A. 3/16 would be the answer

4 0

4 years ago

Read 2 more answers

1. The temperature changes

nadya68 [22]

1 1/2 degrees after 3 hours

8 0

3 years ago

Help me asap you guys i need help

Thepotemich [5.8K]

Hi there! :)

Answer:

$\huge\boxed{C}$

To simplify the process, convert each given weight into standard notation:

Lion:

$1 * 10^{5} = 1 * 100000 = 100,000 g$

Ant:

$2 * 10^{-3} = 2* 0.001 = 0.002$

Divide the ant's weight from the lion's weight:

$100000 / 0.002 = 50,000,000$

Convert to scientific notation: (use # of zeros to determine exponent)

$50,000,000 = 5 * 10^{7}$

Therefore, the correct answer is C.

5 0

3 years ago

To win a particular lottery game, it is necessary to match numbers on 5 balls that are randomly picked from 65 balls numbered 1-

emmainna [20.7K]

Answer: $5.34*10^{-5}$

Step-by-step explanation:

given data:

number of balls = 65.

special black ball that is picked from 10 other balls = numbered 0-9.

Solution:

probability that a single lottery ticket will match 2 balls and the special black ball.

$= 65C2*9C1\\\\= 18720\\\\=\frac{1}{18720} \\\\= 5.34*10^{-5}$

5 0

3 years ago