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3 years ago

Can someone help me

Mathematics

2 answers:

Nikitich [7]3 years ago

8 0

Answer:

Step-by-step explanation:

62 divided by 2

sergey [27]3 years ago

3 0

Answer:BRAINLIEST PLS

x2=64

Step-by-step explanation:

x2=64

Step 1: Take square root.

x=±√64

x=8 or x=−8

Answer:

x=8 or x=−8

factoring

x2=64

Step 1: Subtract 64 from both sides.

x2−64=64−64

x2−64=0

Step 2: Factor left side of equation.

(x+8)(x−8)=0

Step 3: Set factors equal to 0.

x+8=0 or x−8=0

x=−8 or x=8

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An ice-cream store sold 70 sundaes. The ratio of

elixir [45]

Answer:

30 strawberry sundaes.

Step-by-step explanation:

We know there is a total of 70 sundaes.

3 sundaes will be strawberry.

4 sundaes will be choclate.

When you add 3 and 4 together, you get 7. This is your total ratio.

So 3/7 of the sundaes are strawberry.

And 4/7 of sundaes are choclate.

We know there is a total of 70 sundaes.

The total ratio we figured out is 7.

If the total sundaes is 70, and the total ration is 7. Then the total sundaes is 10 times bigger than the ratio.

This means we need to multiply the 3 strawberry sundaes and 4 choclate sundaes by 10.

3*10=30

4*10=40

So there are 30 strawberry sundaes and 40 choclate sundaes.

We need to find the strawberry sundae amount, so the answer is 30.

Hope this helps!

3 0

3 years ago

4^2 x 2<br> Please will give brainliests

vitfil [10]

4^2 = 16
16 x 2 = 32
32, Hope this helps!

4 0

3 years ago

Read 2 more answers

Describe the graph of x ≤ −2

Len [333]

<h3>I hope it is helpful for you </h3>

4 0

3 years ago

Find the values of x and y

eimsori [14]

Answer:

y = 70 and x = 20

Step-by-step explanation:

180 - 40 = 140

140/2 = 70

70 + 90 = 160

180 - 160 = 20

3 0

3 years ago

400.0 ml of a gas are under pressure of 80.0 kpa what would the volume of the gas be at a pressure of 100.0 kpa

Ber [7]

Answer:

The final volume is 320 mL at pressure of 100 kPa.

Step-by-step explanation:

Boyle's law gives the relation between volume and pressure of a gas. It states that at constant temperature, volume is inversely proportional to its pressure such that,

$V\propto \dfrac{1}{P}\\\\P_1V_1=P_2V_2$

Let

$V_1=40\ mL\\\\P_1=80\ kPa\\\\P_2=100\ kPa$

We need to find $V_2$ . Using above equation, we get :

$V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{400\times 80\times 10^3}{100\times 10^3}\\\\V_2=320\ mL$

So, the final volume is 320 mL at pressure of 100 kPa.

6 0

3 years ago