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3 years ago

I need help with some of these I don't get it?

Mathematics

2 answers:

ira [324]3 years ago

6 0

You need to put the problem so we can help you. If you don't, we can't.

riadik2000 [5.3K]3 years ago

3 0

If you give the problems then i will help you the best i can

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On average the number of electric guitars sold in Ohio each year is 61,640, which is eight times the average number of electric

lord [1]

All you have to do is divide 61,640 by 8

61640/8=7705

There are, on average, 7,705 electric guitars sold in Alaska each year.

7 0

3 years ago

Read 2 more answers

A bottle weighs 1.2 kg when it is 1/4 full of water. It weighs 2.4 kg when it is full. What is the weight of the empty bottle?

sweet [91]

Answer:

Weight of empty bottle = 0.8 kg

Weight of water = 1.6 kg

Step-by-step explanation:

As given , A bottle weighs 1.2 kg when it is 1/4 full of water. It weighs 2.4 kg when it is full.

Let us assume

Weight of empty bottle = x

Weight of water = y

Now,

when the bottle is 1/4 full of water

then,

weight of water = $\frac{1}{4}$ ×y

As given , Bottle weight = 1.2 , when it is 1/4 full of water

⇒ Weight of water + weight of bottle = 1.2

⇒ $\frac{1}{4}$ ×y + x = 1.2

⇒ y + 4x = 4.8 .......(1)

Also given, A bottle weight = 2.4 , when it is full of water

⇒ Weight of water + weight of bottle = 2.4

⇒ y + x = 2.4 ......(2)

Subtract equation (2) from equation (1) , we get

y + 4x - ( y+ x) = 4.8 - 2.4

⇒ y + 4x - y - x = 2.4

⇒3x = 2.4

⇒x = $\frac{2.4}{3}$ = 0.8 kg

and y = 2.4 - x = 2.4 - 0.8 = 1.6 kg

∴ we get

Weight of empty bottle = x = 0.8 kg

Weight of water = y = 1.6 kg

4 0

3 years ago

Please don't leave half an answer for the points!

vovikov84 [41]

Answer:

T . . . labeling shown below
U
R
S

Step-by-step explanation:

Matrix multiplication of A(a rows, b columns) and B(b rows, c columns) will result in a product matrix of AB(a rows, c columns). This fact can be used to reduce the number of candidates for each product.

For the given factor tiles, the resulting product dimensions will be ...

[2, 3] [3, 2] [2, 2] ⇒ Q, R, S

[2, 3] [3, 3] [3, 2] ⇒ T, U, V

[3, 3] ⇒ W

1. For this 2×3 product, candidates are Q and T. The upper left term for the product in Q is (2)(3) +(1)(7) +(0)(8) = 13. The appropriate choice is T.

2. For this 3×3 product, candidates are U and W. The upper left term for the product in U is 9(2) +1(2) +9(5) +5(1) = 18 +2 +45 +5 = 70. The appropriate choice is U.

3. For this 3×2 product, candidates are R and V. The upper left term for the product in R is 1(4) +2(0) +4(1) = 4 +0 +4 = 8. The appropriate choice is R.

4. For this 2×2 product, there is only one candidate: S.

5 0

2 years ago

Find the original price of a pair of shoes if the sale price is $40 after a %20% discount.

borishaifa [10]

That would be around $200. Because you would take 40 devide by .2 and get 200.

4 0

3 years ago

A rocket is traveling at 283 miles per minute. How far will the rocket travel in 15 minutes?

Eddi Din [679]

Answer:

4,245 miles

Step-by-step explanation:

Hello there,

the reason the answer is 4245 is because its says per minute therefore each minute of the rocket is going 283 miles and when it ask how miles did it travel in 15 minutes u just multiply 283 and 15 which gets you the answer 4245 miles

Hope dis helps.

8 0

3 years ago

Read 2 more answers