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2 years ago

How to increase 160km by 30%

Mathematics

2 answers:

maw [93]2 years ago

8 0

208 is the answer, hope i helped

Arte-miy333 [17]2 years ago

4 0

Hello!

First, you'll need to convert 30% into a decimal. You can do this by moving 30's decimal place twice to the left to get 0.30. Now you'll need to multiply 0.30 with 160km to get 30% of 160. Once you've done that you should have 48. Now to increase 160km by 30%, you'll need to add 48 to 160 to increase it by 30%. Once you've done that, you should have an answer of 208km.

I hope this helps!

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A bag contains 15 green, 18 yellow, and 16 orange balls. One ball is randomly selected. To the nearest percent, what is the prob

evablogger [386]

Since the bag contains 15 green, 18 yellow, and 16 orange balls, the total number of balls in the bag are 15+18+16=49.

Therefore, the probability of the event that the drawn ball is yellow is given by:

P(yellow)= $\frac{Number of Yellow Balls}{Total Number of Balls}$

$\therefore P(Yellow)=\frac{18}{49}\times 100\approx36.73\approx37$ %

Thus, the the probability of the event, to the nearest percent, that the drawn ball is yellow is 37%.

5 0

2 years ago

Read 2 more answers

Use the net to find the surface area of the prism 8in 15in 17in 9in

exis [7]

Answer:

The surface area of the prism is 480 in².

Step-by-step explanation:

Given:

The prism dimensions are 8in 15in 17in and 9in.

Now, to find the surface area:

So, to get the surface area we put formula:

a=8in, b=15in, c=17in and h=9in.

Surface area = 2A+(a+b+c)h.

Whereas, $A=\sqrt{s(s-a)(s-b)(s-c)}$

And, $s=\frac{a+b+c}{2}$

Now, we find s first:

$s=\frac{a+b+c}{2}$

$s=\frac{8+15+17}{2}$

$s=\frac{40}{2}=20.$

Then, we get A :

$A=\sqrt{s(s-a)(s-b)(s-c)}$

$A=\sqrt{20(20-8)(20-15)(20-17)}$

$A=\sqrt{20(12)(5)(3)}$

On solving we get:

$A=\sqrt{3600}=60.$

Now, putting the value of A in the formula to get the surface area:

$Surface area = 2A+(a+b+c)h.$

$Surface area = 2\times 60+(8+15+17)9.$

$Surface area = 120+(40)9.$

$Surface area = 120+360.$

$Surface area = 480\ in^2.$

Therefore, the surface area of the prism is 480 in².

6 0

3 years ago

I rlly hate math, pweaseeee help me asap!!!

jekas [21]

Answer:

See explanation.

Step-by-step explanation:

Part C)

$5+(-10)$

When adding a positive to a negative, the result will be the sign of the larger absolute value. In this case, 10 is greater than 5, so the result will be negative.

Adding a negative is also the same thing as subtracting a positive.

$5+(-10)\\5-10\\-5$