3 years ago

HELP ME ASAP!!!! THIS JUST TWO QUESTIONS BUT THEY AREN'T DIFFICULT

Mathematics

1 answer:

maks197457 [2]3 years ago

6 0

Answer:

3.6 and 8.4

Step-by-step explanation:

you put it into proportions

?/12= 30/100

you do 30 times 12

then divide it by 100

?/12 = 70/100

multiply 70 and 12

then divide it by 100

You might be interested in

Which is a perfect square?<br> A. 6^1<br> B.6^2<br> C.6^3<br> D. 6^5

AveGali [126]

6^2 = 36 is a perfect square.

4 0

3 years ago

Read 2 more answers

The average age of 15 students is 16 years. If teacher’s age is included the average increases by 1. Find teacher’s age. (a) 30

Mrac [35]

Answer:

Age of teacher = 32 years

Step-by-step explanation:

Average age of 15 students = 16 years

Sum of age of 15 students = 16 * 15 = 240 years

Average of age 15 students and a teacher = 17 years

Sum of age 15 students and a teacher = 17 * 16 = 272 years

Age of teacher = 272 - 240 = 32 years

4 0

4 years ago

Read 2 more answers

If f(x) = 3x +2 and g(x) = x2-3, what is f(g(4))?

Alika [10]

First, do g(4) by plugging in 4 for x

4^ - 3 = 16 - 3 = 13

Then, multiply it by f(x)

13(3x + 2) = 39x + 26
Answer= 39x + 26

7 0

3 years ago

43 points, 86 for brainliest! Answer correct!! Be wise! Acording to the image attached, whats the answer?

Dvinal [7]

Answer:

$c = 62.83 ft$

$a = 314.159 {ft}^{2}$

Step-by-step explanation:

$c = 2\pi \: r \\ c = 2 \times \pi \times 10 \\ c = 62.83ft$

$area \\ = \pi {r}^{2} \\ = \pi \times 10 \times 10 \\ = 314.159 {ft}^{2}$

hope this helps

brainliest appreciated

good luck! have a nice day!

8 0

4 years ago

Read 2 more answers

Find the present value given the following:Amount needed: $9,350Time in years: 4Interest: 5%Compounded: semiannually

Vsevolod [243]

The amount is $9,350 ,time in years: 4 and interest is 5 percent compounded semiannually.

Use the formula.

$A=P(1+\frac{r}{n})^{nt}$

Here n =2 .

Substitute the values,

$9350=P(1+\frac{5}{100\times2})^{2\times4}$ $9350=P(1+0.025)^8$ $9350=P(1.025)^8$ $P=\frac{9350}{1.2184}=7673.98\text{dollar}$

Hence the present value is 7673.98 dollar.

4 0

2 years ago