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3 years ago

Solve.. pls need this quick.. I'll mark you as brainliest!!!

Mathematics

2 answers:

UkoKoshka [18]3 years ago

5 0

Answer:

b. 896

Step-by-step explanation:

just put the numbers on the choice to know the right answer. here when you put 896 in <u> </u>*27/14/72=24 you will get the right answer which is 24. so the answer is 896.

Anettt [7]3 years ago

3 0

Answer:

b. 896

Step-by-step explanation:

Let the required number be x .

$x\times 27\div14\div72= 24\\x\times 27\div14\times\frac{1}{72}= 24\\x\times 27\times\frac{1}{14}\times\frac{1}{72}= 24\\x\times 3\times\frac{1}{14}\times\frac{1}{8}= 24\\\\x= \frac{24\times 8\times 14}{3}\\x= 8\times 8\times 14\\x= 64\times 14\\\huge\red{\boxed{x = 896}}\\$

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Jill went shopping from 3:45 pm to 5:00 pm for how long did she shop

Eduardwww [97]

Answer:

total 1 hour 15 mins

Step-by-step explanation:

3:45 - 5:00

lets count one by one

3:45 - 4:00 = 15 mins

4:00 - 5:00 = 1 hour

total 1 hour 15 mins

3 0

2 years ago

Which of the following is the inverse of N(r) if N(r)=8r+17

BaLLatris [955]

$N=8r+17 \\ 8r=N-17 \\ r= \frac{N-17}{8} \\ Inverse \ is \ \frac{r-17}{8}$

8 0

3 years ago

What is the meaning of the t-intercept of the altitude graph? The y-intercept?

Gnom [1K]

Answer: Hello mate!

We know that you have a graph of y vs t, and we know that this is an "altitude" graph.

Then we can assume that the y represents the altitude, and t represents the time, and this graph shows the altitude of something as a function of the time.

the t-intercept means that the graph passes through the y-axis, this means that, in this point, y is equal to zero:

Then, at the t-intercept, we have y = 0, which means that at this time (where is the intersection) the altitude is equal to zero.

The y-intercept means that the graph passes through the y-axis, where t = 0

this is the initial value of the altitude, where t = 0 usually denotes the time where we start to measure.

3 0

3 years ago

An automobile manufacturer claims that its car has a 35.935.9 miles/gallon (MPG) rating. An independent testing firm has been co

Serjik [45]

<h2>Answer with explanation:</h2>

Let $\mu$ be the population mean.

For the given claim , we have

Null hypothesis : $H_0: \mu=35.9$

Alternative hypothesis : $H_a: \mu\neq35.9$

Since alternative hypothesis is two-tailed , so the test is a two-tailed test.

Given : Sample size : n=220 ;

Sample mean: $\overline{x}=35.6$ ;

Standard deviation: $s=2.2$

Test statistic for population mean:

$z=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}$

$z=\dfrac{35.6-35.9}{\dfrac{2.2}{\sqrt{220}}}\approx-2.02$

By using the standard normal distribution table of z , we have

P-value ( two tailed test ) : $2P(Z>|z|)=2(1-P(Z$

$=2(1-P(z$

Since , the P-value is greater than the significance level of $\alpha=0.02$ , it means we do not have sufficient evidence to reject the null hypothesis.

5 0

4 years ago

PLEASE HELP!!!!! Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance t

Sveta_85 [38]

Answer:

The answer to your question is Advance = $35 and same-day = $40

Step-by-step explanation:

Advanced = a

Same-day = s

Equations

a + s = 75 ----- (I)

20a + 35s = 2100 ----- (II)

Process

1.- Solve the equations by elimination.

Multiply equation I by -20

-20a - 20s = -1500

20a + 35s = 2100

Simplify

0 + 15s = 600

Solve for s s = 600/15

s = $ 40

Substitute "s" in equation I to find "a"

a + 40 = 75

Solve for a

a = 75 - 40

a = 35

3 0

3 years ago