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2 years ago

A chef is preparing food for a group of 21 people. He uses a recipe that calls for 4 tomatoes

Mathematics

1 answer:

Elenna [48]2 years ago

4 0

Answer:

D: 14

Step-by-step explanation:

since the proportion is already 4:6, so you want to divided it by 2, so it will become 2:3, then multiply it by 7, so thats how i got 14 tomatoes for 21 people

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An expression is shown 30×8×103 P.s the three is in top of the 10 What is the value of the expression

lesya692 [45]

Answer: 2.4×10^5

Step-by-step explanation:

30×8×10^3

First multiply and forget about ×10^3 for now:

30×8 = 240

Then add back the ×10^3:

240×10^3

Then simplify:

2.4×10^5

To check the answer:

30×8×10³=

30×8000= 240000

Then simplify:

240000 = 2.4 ×10⁵

8 0

2 years ago

The volume of a prism changes from 20 to 540 after a dilation. what was the scale factor of the dilation?

lyudmila [28]

Scale factor is used by architects or engineers to transfer their prototype idea to large-scale use. If the volume of a prism is 20, you need to multiply its dimensions with a scale factor to find the new volume which is 540. For example, if the volume is doubled, this means you used a scale factor of 2. Hence, you just have to divide the new volume by the smaller volume.

Scale factor = 540/20
Scale factor = 27

7 0

3 years ago

Read 2 more answers

A picnic table was originally priced at 40, but Megan waited to buy the picnic table on sale from 75% off. If she paid 10% sale

Mila [183]

<u>Answer:</u>

she spent total price of 13 on the picnic table

<u>Explanation: </u>

Original price of the table = 40

Since she paid 10% of the sale tax after the sale then the total amount she spend is

Discount = (discount percentage – sale tax ) × original price

= (75% -10%) × 40

= 65 % ×40

= $\frac{65}{100} \times 40$

=26

Hence after the discount amount

Original price – discount price

= 40-26 = 13

Hence she spent total price of 13 on the picnic table

8 0

3 years ago

10-d = -34-5d solve this equation

algol13

<h3><u>Explanation</u></h3>

Given the equation.

$10 - d = - 34 - 5d$

Solve the equation for d-term.

Because we cannot subtract or add up constants and variables, we simply move the same variable term to the same side and constant term to the same constant side.

$10 + 34 = - 5d + d \\ 44 = - 4d \\ \frac{44}{ - 4} = d \\ - 11 = d$