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3 years ago

7

Whats 42+87? Now, answer with tik to.k me mes

2 answers:

drek231 [11]3 years ago

8 0

Answer:

21

Step-by-step explanation:

I'm 100% sure it's 21 jsgsisbskwnos

Alisiya [41]3 years ago

4 0

Answer:

129

Step-by-step explanation:

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An equality of two ratios is called a

BartSMP [9]

An equality of two rations is called a porportion

7 0

3 years ago

Read 2 more answers

1. The ratio between the number of Anita's cousins and the number of Juan's

Pachacha [2.7K]

Answer:

C) 24

Step-by-step explanation:

Set x equal to the number of cousins Juan has:

5/8 = 15/x

Cross-multiply: 5x = 15 × 8

5x = 120

x = 24

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3 years ago

18 minus 7 x = negative 20.5

alex41 [277]

Answer:

x=5.5

Step-by-step explanation:

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3 years ago

Which one is bigger?

Alex777 [14]

Answer:

B

Step-by-step explanation:

$\frac{4}{5} ^{2}$ = 0.64

$\frac{3}{5} / \frac{4}{5}$ = 0.75

Therefore, the answer is B.

Hope this helps!

3 0

2 years ago

The kinetic energy k of an object in joules is given by the formula k=1/2mv² where m is the object's mass in kilograms and v is

Tamiku [17]

Answer:

192000 J

Step-by-step explanation:

k = 1/2 mv²

48000 = 1/2 x m x (20)²

48000 = 200m

m = 240 kg

new k

k = 1/2 x 240 x 40²

k = 192000 J

5 0

3 years ago