MATHEMATICS MIDDLE SCHOOL

Please I need help on this one

Answers

Answer 1

Answer:

Answer:

2520

Step-by-step explanation:

18×24=432

432÷2=216

216×35=7560

7560÷3=2520

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Find the variance and standard deviation of the given set of data to the nearest tenth.{440, 130, 280, 500, 150, 640, 760}A) variance = 222.7, standard deviation = 49,595.9B) variance = 49,595.9, standard deviation = 24,798C) variance = 49,595.9, standard deviation = 222.7D) variance = 57,861.9, standard deviation = 240.5
A gallon of water weighs 8.354 pounds Simon uses 11.81 gallons of water while taking a shower about how many pounds of water did Simon use?
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solve each inequality using addition and subtraction and graph it's solution set on a number line x + 8 > 14
HELP WILL MARK BRAINLIEST 72.74mm = blank m

How will you write 5 x 5 x 5 x 5 x 5 as an exponential expression?OA. 5x5
OB. 55
Oc. 545
OD. 5
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Answers

Answer:

Step-by-step explanation:

5 * 5 * 5 * 5 * 5 = 5^5

Written in Latex, which is the best way to show this, the answer is

$5^(5)$

I think you might mean B. If you do then it is correct, but it must be shown as 5^5

Covert 1 4/7 into a decimal and show/explain how you got your answer

Answers

Answer:

4/10 im smart im a teacher

Step-by-step explanation:

Find the surface area of the regular hexagonal prism.

Answers

do u have the surface area formula

Answer:

1,807.2

Step-by-step explanation:

Using the formula for hexagon.

Ed spent 8.5% of his savings on lunch, which cost $5.25. How much did he have in savings before lunch?

Answers

$61.76 because you divide 100% by 8.5 then multiply the answer by 5.25... hopethat helped ;)

100 ÷ 8.5= 11.7647058824 then 11.7647058824 × 5.25= 61.7647058824 and round to 61.76
$61.76 because you divide 100% by 8.5 then multiply the answer by 5.25.

PLEADE HELP! find the value of X. Round to the nearest tenth.

Answers

As suggested, we have to use the law of sines: it states that the ratio between a side and the sine of the opposite angle is constant in every triangle.

We know that one side length is 11, and the opposite angle is 27°

Another side length is 15, and the opposite angle is x.

So, the law of sines states that

$(11)/(\sin(27))=(15)/(\sin(x))$

Solving for $\sin(x)$ we have

$\sin(x) = (15\sin(27))/(11)$

Which implies

$x=\arcsin\left((15\sin(27))/(11)\right)$

Put this into a calculator to get

$\arcsin\left((15\sin(27))/(11)\right)\approx 0.7$

Answer:

x ≈ 28.2

Step-by-step explanation:

Using the sine rule then

$(sinx)/(15)$ = $(sin27)/(11)$ ( cross- multiply )

11sinx = 15sin27° ( divide both sides by 11 )

sin x = $(15sin27)/(11)$ ≈ 0.61907..

x = $sin^(-1)$ (0.61907 ) ≈ 28.2

your friend rent 10chairs and 2 tables for $300. another friend rent 8 chairs and 4 tables for $360 you want to rent 12 chairs and 3 tables how much do you expect to pay? ps I need it today

Answers

If x is chairs and y is tables then
10x+2y=300
8x+4y=360
solve for y and substitute to find x
10x+2y=300
2y=300 -10x
y=150 -5x so put 150 -5x in for y in the other equation
8x+4(150-5x)=360
8x+600-20x=360
-12x=-240
x= $20 per chair

put that in for x in either equation to find y
10(20)+2y=300
2y=300-200
y=100/2
y= $50 per table

12 chairs and 3 tables would cost 12(20)+3(50)=240+150=
$390

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