MATHEMATICS HIGH SCHOOL

For the school recycling project, the seventh grade collected sixteen more than five times as many cans as the eighth grade. The seventh grade collected 251 cans. Select all of the equations that can be used to find the number of cans, c, the eighth grade collected.5c=251−16

5c=251+16

5c+16c=251

5c+16=251
which one?

Answers

Answer 1

Answer: 251-16=235

235/5=47

so a

Answer 2

Answer:

Answer:don't know like if you want

Step-by-step explanation: H I H I H I H I

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What is the answer to this ‘???

Please help me thank u

Answers

simplify inside the ( )'s first, reducing the 6 with the 3 leaving a 2 in the numerator, and reducing the x³ with the x^4, leaving an x in the denominator:
(2/x)²

square both numerator an denominator:

4/x² check this one not sure just what I know though...tell me if it helps

The length of a rectangle is 5cm longer than its width.If the perimeter of the rectangle is 66cm, find its length and width.

Answers

Answer:

width is 14, length is 19

Step-by-step explanation:

let w represent the width of the rectangle.

"The length of a rectangle is 5 cm longer than its width."

You can take from this that you must add 5 to the width to get the length.

so, you can now write that L=w+5 .

The formula for perimeter is 2w+2L.

You can plug the values in.

2w+2(w+5) is the expression you get.

use distributive property on the 2(w+5) to get 2w+ 2w+10 . Add same terms together and get 4w+10, which represents the perimeter.

"..The perimeter of the rectangle is 66 cm."

Set the simplified expression 4w+10 to 66 to get

4w+10=66

Subtract 10 from both sides and get

4w=56

divide by four for both sides and get w=14 .

We are not done yet!

To find the length, plug the width back into our formula L=w+5 and get L=14+5. The length is 19.

Find cotx if sinx cotx cscx = sqrt2

Answers

Answer:

$cot(x)=\sqrt2$

Step-by-step explanation:

$sin(x)cot(x)csc(x) = \sqrt2$ , csc(x) = 1/sin(x)

$sin(x)cot(x)((1)/(sin(x))) = \sqrt2$

$cot(x)=\sqrt2$

Convert the mixed number 3¼ to a percent.a. 375%
b. 333%
c. 314%
d. 325%

Answers

3 and 1/4=3+0.25=3.25/1

percent means parts out of 100 so x%=x/100
3.25/1 times 100/100=325/100=325%

D

Hi there! We know that 1/4=0.25*100=25%. If you add the 3 in 3 1/4 it would be 3.25, 3.25*100=325. Therefore, the answer is D. 325%

(6ab+a-4)-(ab-1) please help me!

Answers

☆Let's simplify step-by-step!☆
☆Question you asked:
6ab+a−4−(ab−1)

☆Distribute the Negative Sign:
6ab+a−4+−1(ab−1)
6ab+a+−4+−1ab+(−1)(−1)
6ab+a+−4+−ab+1

☆Combine Like Terms:
6ab+a+−4+−ab+1
(6ab+−ab)+(a)+(−4+1)

☆Answer:
5ab+a+−3

☆I hope this helps!☆

$(6ab + a - 4)-(ab-1) \n \n 6ab + a - 4 - ab + 1 \n \n (6ab - ab) + a - 4 + 1 \n \n 5ab + a - 4 + 1 \n \n 5ab + a - 3 \n \n Answer: \fbox {5ab + a - 3}$

Find the area and the circumference of a circle with diameter 5 cm.Use the value 3.14 for it, and do not round your answers. Be sure to include the correct units in your answers.

Answers

The Circumference of the circle is
15.7

and Area is
19.625

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