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3 years ago

Heelllppppppppp?????

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

4 0

I can't see what you are saying

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2.5kg cost £1.40<br> what is the cost of 4.25kg

madreJ [45]

Answer:

it is 5.7

Step-by-step explanation:

4.25 × 1.40

5.95 - 0.25

5.7 or 5.70

8 0

3 years ago

How are colors used on this map?

IceJOKER [234]

Answer:

huh'?

Step-by-step explanation:

8 0

3 years ago

Linda can bicycle 48 miles in the same time as it takes her to walk 12 miles. She can ride 9 mph faster than she can walk. How f

Marrrta [24]

Answer:

$\frac{48}{r+9}=\frac{12}{r}$

Step-by-step explanation:

Let r represent Linda's walking rate.

We have been given that Linda can ride 9 mph faster than she can walk, so Linda's bike riding rate would be $t+9$ miles per hour.

$\text{Time}=\frac{\text{Distance}}{\text{Rate}}$

We have been given that Linda can bicycle 48 miles in the same time as it takes her to walk 12 miles.

$\text{Time while riding}=\frac{48}{r+9}$

$\text{Time taken while walking}=\frac{12}{r}$

Since both times are equal, so we will get:

$\frac{48}{r+9}=\frac{12}{r}$

Therefore, the equation $\frac{48}{r+9}=\frac{12}{r}$ can be used to solve the rates for given problem.

Cross multiply:

$48r=12r+108$

$48r-12r=12r-12r+108$

$36r=108$

$\frac{36r}{36}=\frac{108}{36}$

$r=3$

Therefore, Linda's walking at a rate of 3 miles per hour.

Linda's bike riding rate would be $t+9\Rightarrow 3+9=12$ miles per hour.

Therefore, Linda's riding the bike at a rate of 12 miles per hour.

7 0

3 years ago

Arina has a 2/3 quart of milk. she uses 3/4 of it in a cookie recepie. how much milk did ariana used in her recepie?

AleksandrR [38]

Answer:

1/2 a quart of milk

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

You discovered you can deduct medical expenses over 6% of your income. Your income is $42,000, and you had medical expenses of $

alukav5142 [94]

Answer
<span>c) $567
</span>
Explanation
The income is $42,000
6% 0f $42,000 = 6/100 ×42,000
= 0.06×42,000
= $2,520

This is more than your medical expense. This means that the portion that your medical expense that you can deduct is the whole amount, $567.

6 0

3 years ago

Read 2 more answers