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2 years ago

When you find the surface area of a cube, you ________ the length of the cube and multiply by 6.

Mathematics

1 answer:

garik1379 [7]2 years ago

7 0

Answer:

A-square

Step-by-step explanation:

The formula for the surface area of a cube is:

SA = 6a²

where a is the length of the cube

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The sum of three consecutive natural numbers is 450 find the numbers. The three numbers in increasing order are?

pantera1 [17]

Answer: 149,150,151

Step-by-step explanation:

1.st solution

Let the smallest number is x.

So next consecutive number is x+1

So the third consecutive number is x+2

So the sum of these three numbers is:

x+x+1+x+2=450

3x+3=450

3x=447

x=149 - first number

Second number is 149+1=150

Third number is 150+1=151

2-nd solution

The sum of 3 numbers in row is 450. It means that average number is 450:3=150 - is the number which is in the middle

So the first one number is 150-1=149 and the third number is 150+1=151

5 0

3 years ago

Solve |y|+7>18<br> how do you solve this??

frozen [14]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality Form:

Step-by-step explanation:

4 0

2 years ago

CAN ANYONE PLS TELL ME THE BOTH

WARRIOR [948]

First question is 1:2
Second question is 12

6 0

2 years ago

Read 2 more answers

It's costs $2.80 to make a sandwich at the local deli shop to make a profit the deli sells it at a price that is 170% of the cos

docker41 [41]

The sandwich is sold for $4.76

Explanation-

Divide the total cost of the sandwich by 100 to find what 1% would equal (0.028) then multiple that by the percent the deli sells the sandwich( 170%) which gets you $4.76

8 0

3 years ago

You buy Apple stock for $120 per share over a period of time the stock value increased at a weekly rate of 5% you sell the stock

Rainbow [258]

Answer:

8.31 weeks

Step-by-step explanation:

Given that the cost of one share of Apple stock, C=$120

Rate is the increment of the stock value, R= 5%/week=0.05 / week.

Assuming that after t week, the stock has been sold for $180.

Since the stock value increased at 5% every week, so, the interest is compounded weekly, so

$S=C\left(1+R\right)^t \\\\ \Rightarrow 180 = 120\left(1+0.05\right)^t \\\\ \Rightarrow 180 = 120\left(1.05 )^t \\\\$

$\Rightarrow \frac{180}{120}=1.05^t \\\\\Rightarrow 1.5=1.05^t$

$\Rightarrow \ln(1.5)=t \ln(1.05)$ [taking log both sides]

$\Rightarrow t=\frac {\ln(1.5)}{\ln(1.05)}=8.31$ weeks

Hence, after 8.31 weeks the stock has been sold for $180.

6 0

3 years ago