All categories

3 years ago

4(5t - 7)=10t+2 how to simplify equation

Mathematics

1 answer:

prohojiy [21]3 years ago

7 0

$20t-28=10t+2$ ⇔ $20t-10t=2+28$ ⇔ $10t=30$ ⇔ $t=3$

You might be interested in

36 x 10^5 in scientific notation

Viktor [21]

Answer:

3.6 x 10^6

Hope this helps :)

7 0

3 years ago

The volume of this storage container is 1,400 cubic inches. The length is 20 inches and the width is 14 inches.

Vitek1552 [10]

Answer:

<h2>A) Height is the missing measurment.</h2><h2 /><h2> B) 1,400= 20 × 14 × H</h2><h2 /><h2>C) 1400 ÷ H = 280</h2>

Step-by-step explanation:

A) Length × Width × Height

B) V is 1,400

L is 20

W is 14

H is unknown so use a variable

C) 20 × 14= 280.

8 0

2 years ago

Read 2 more answers

Consider a large shipment of 400 refrigerators, of which 40 have defective compressors. If X is the number among 15 randomly sel

Vlad [161]

Answer:

The required probability is 0.94

Step-by-step explanation:

Consider the provided information.

There are 400 refrigerators, of which 40 have defective compressors.

Therefore N = 400 and X = 40

The probability of defective compressors is:

$\frac{40}{400}=0.10$

It is given that If X is the number among 15 randomly selected refrigerators that have defective compressors,

That means n=15

Apply the probability density function.

$P(X=x)=^nC_xp^x(1-p)^{n-x}$

We need to find P(X ≤ 3)

$P(X\leq3) =P(X=0)+P(X=1)+P(X=2)+P(X=3)\\P(X\leq3) =\frac{15!}{15!}(0.1)^0(1-0.1)^{15}+\frac{15!}{14!}(0.1)^1(1-0.1)^{14}+\frac{15!}{13!2!}(0.1)^2(1-0.1)^{13}+\frac{15!}{12!3!}(0.1)^3(1-0.1)^{12}\\$

$P(X\leq3) =0.944444369992\approx 0.94$

Hence, the required probability is 0.94

4 0

2 years ago

What is the domain of the following parabola?

Alex17521 [72]

I think it should be C but let me know if im wrong plz

4 0

3 years ago

Can someone please help me with the answer.

Elza [17]

Answer:

The answer to your question is : f(-2) = 2

Step-by-step explanation:

Just look for -2 in the x- axis and look for some line or point, vertical to number two.

In your example you can find a point two units upward the x-axis.

5 0

3 years ago