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4 years ago

Find the percent of decrease from 340 to 160. Round to the nearest tenth of a

Mathematics

1 answer:

PIT_PIT [208]4 years ago

5 0

Answer: D is correct, 52.9%

Step-by-step explanation:

% decrease from 340 to 160, Where 340 is the old number and 160 is the new number

Percent change = (New number - Old number) / Old number x 100%

Percent change

= (160 - 340) / 340 x 100

= (-180) / 340x 100 = -52.94%

I hope this is clear, please mark as brainliest answer.

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4. The money in Mrs. Finch’s savings account is earning 1.45% interest. Which number below is greater than 1.45%

makvit [3.9K]

B) 0.019

0.019 = 1.9%

6 0

3 years ago

1) The regular price of a shirt is $15. A store is offering a discount of 30%. What is the

alexandr402 [8]

Answer:

$10.50

Step-by-step explanation:

15 times 30 = 4.5

15-4.5=10.50

5 0

3 years ago

A concrete column has a diameter of 390 mm and a length of 3 m. If the density (mass/volume) of concrete is 2.45 Mg/m^3, determi

Serhud [2]

Answer:

Step-by-step explanation:

The column has the shape of a cylinder hence the formula for the volume of a cylinder is

$v=\pi r^2h$

Given

diameter d= 390 mm

radius r= 390/2= 195 mm to meter = 0.195 m

length or height h= 3 m

applying the data to the formula we have

$v=\pi *0.195^2*3\\\\ v=\pi*0.0038*3\\\\ v=\pi*0.0114\\\\ v=0.035 m^3$

we can now use the volume in addition with the density given to solve for the mass using the expression for density

density= mass/volume

2.45= mass/0.035

mass= 2.45*0.035

mass= 0.085 mg

We know that weight

w= mass* acceleration

w= 0.085*9.81

w= 0.83 N

3 0

4 years ago

ANSWER QUICKLY..

astra-53 [7]

Answer:

10 weeks

Step-by-step explanation:

Let's set an equation for you and your brother.

You have $90 plus $18 for every week you save (x).

90+18x

And your brother has $120 plus $15 dollars per week that he saves (x)

120+15x

You want to have the sum of the money equal so combine the two concluded statements

90+18x=120+15x

Arrange them so that you have like terms on each side

90+18x-15x=12+15x-15x

90+3x=120

90-90+3x=120-90

3x=30

x=10

"x" is our number of weeks you and your brother save so the answer is 10 weeks

Just to be sure you can use our equation and plug 10 for every time you see x to make sure our answer is right.

6 0

3 years ago

X/√24-√150/4=3√96/16

geniusboy [140]

I hope this helps you

6 0

4 years ago