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3 years ago

At the market, 5 light bulbs cost $9. How much do 7 light bulbs cost?

2 answers:

Rudiy273 years ago

6 0

Hello!

To solve this, find the cost of a single light bulb first, by dividing 9 / 5.

9 / 5 ==> 1.80

One light bulb is $1.80

Now, multiply 1.80 by 7.

1.80 * 7 = 12.6

7 light bulbs cost $12.6

Hope this helps! ☺♥

ivolga24 [154]3 years ago

3 0

Answer:

7 light bulbs cost $12.6

Step-by-step explanation:

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A coin is tossed 5 times and a tail is the outcome each time. what is the probability of getting a tail on the sixth throw

Norma-Jean [14]

I believe it would be
1/5

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3 years ago

Jackson bought 555 ounces of raisins for \$4$4dollar sign, 4.

Fynjy0 [20]

Answer:

Part a) The raisins cost $0.8 per ounce

Part b) 1.25 ounces

Step-by-step explanation:

The correct question is

Jackson bought 5 ounces of raisins for $4 dollars.

a) How much do raisins cost per ounce?

b) How many ounces of raisins can be bought for $1?

Part a) How much do raisins cost per ounce?

we know that

To find out the unit rate divide the total cost by the total weight

$\frac{4}{5} =\$0.8\ per\ ounce$

therefore

The raisins cost $0.8 per ounce

Part b) How many ounces of raisins can be bought for $1?

we know that

The raisins cost $0.8 per ounce

using proportion

Find out how many ounces of raisins can be bought for $1

Let

x -----> the ounces of raisins

$\frac{1}{0.8}=\frac{x}{1}\\\\x= 1.25\ ounces$

8 0

3 years ago

Read 2 more answers

PLEASE HELP QUICKLY AS POSSIBLE THANK YOU :)

Hoochie [10]

Answer:

$40.52

Step-by-step explanation:

You add the amount of all the t-shirts that Mike bought and subtract it from 100.

6 0

3 years ago

A test driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. On his first round

Darya [45]

(40+x)/2=60

40 +x = 120

x = 80

check :

40+80 = 120

120/2 = 60

so his second round needs to be 80 mph

3 0

3 years ago

Help plzz I don't understand this at all.

Zolol [24]

6.4/8 = y/6 = x/7

0.8/1 = 4.8/6 = 5.6/7

6.4/8 = 4.8/6 = 5.6/7

x = 5.6 ; y = 4.8

I think that’s how you do it but not 100% sure

3 0

3 years ago