3 years ago

23. Solve for x. 10 х 12 13

Mathematics

1 answer:

faust18 [17]3 years ago

6 0

The correct answer is 8

You might be interested in

. If there are 20 girls in a class of 30 students, find out the percentage of boys in the class?

Katena32 [7]

Answer:

Step-by-step explanation:

because there are 20 girls and 10 boys = 30

4 0

2 years ago

Read 2 more answers

What is the quotient?

Arturiano [62]

(3.78x109)<span>÷14,000
=0.02943
= 2.943 x 10^-2</span>

7 0

3 years ago

Whats the answer to 8.4 + 0.18x = 0.32x

Sveta_85 [38]

Step-by-step explanation:

$0.32x - 0.18x = 8.4 \\ 0.14x = 8.4 \\ x = \frac{8.4}{0.14} \\ x = 60$

3 0

2 years ago

(0.4y - 3)/(1.5y + 9) = -7/5

Jlenok [28]

Answer:

y = -3.84.

Step-by-step explanation:

(0.4y - 3)/(1.5y + 9) = -7/5

Cross multiply:

2y - 15 = -10.5y - 63

12.5y = -48

y = -3.84

6 0

3 years ago

A sphere has a diameter of 4 x 10^-3 mm. What is the approximate volume of the sphere? Use 3.14 for pi.

kolezko [41]

Answer:

$3.349 \times {10}^{ - 10} \: {mm}^{3}$

Step-by-step explanation:

$d = 4 \times {10}^{ - 3} \: mm \\ r = 2 \times {10}^{ - 3} \: mm \\ V_{sphere} = \frac{4}{3} \pi {r}^{3} \\ = \frac{4}{3} \times 3.14 \times {(2 \times {10}^{ - 3} )}^{3} \\ = \frac{4}{3} \times 3.14 \times 8\times {10}^{ - 9} \\ = \frac{100.48}{3} \times {10}^{ - 9} \\ = 33.4933333\times {10}^{ - 9} \\ = 33.49 \times {10}^{ - 9} \\ = 3.349 \times {10}^{ - 10} \: {mm}^{3}$

8 0

3 years ago