1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yan [13]
3 years ago
13

30g of sugar is used to make 4 cakes. How much sugar is used to make 7 cakes

Mathematics
2 answers:
tankabanditka [31]3 years ago
4 0

Answer:

52.5

Step-by-step explanation:

well first you want to find the ratio and to do that just do 30 / 4 which is

7.5 so for every 1 cake you need 7.5 grams of sugar

if you plug in 7 it is just 7 * 7.5

7 * 7.5 = 52.5

so it takes 52.5 grams of sugar to make 7 cakes

hope this helps please make brainliest

gulaghasi [49]3 years ago
3 0

Answer:

52.5g of sugar is used to make 7 cakes.

Step-by-step explanation:

I love this topic. <3 This is called Scale factors.

If 30 per 4, then how many per 7? is the question. I can't explain this very well on the computer, but maybe I can with picture.

To get from 4 to 7, multiply by 7/4. I forgot what rule/property this is, but it says that if x*z=y, z = y/x. It is helpful!

So now, the scale of the ratio 4:7 is 7/4. This is the same scale of 30:?. Multiply 30 by 7/4. The answer you get is 52.5. If you are confused, try more scale factor problems, and I suggest looking at Khan Academy. ^_^

Hope I helped!

YOU CAN ALSO DO THIS ANOTHER WAY that does not involve multiplying with fractions. With ratios, ORDER MATTERS. Whatever is mentioned first is x, and whatever is mentioned next is y. In this case, the standard ratio format is x:y. x=sugar and y=cake. Divide the ratio 30:4 by 4. You get 7.5:1 Multiply 1 by 7, because 1, 4, and 7 are the cakes. [You can apply "what you do to one side, you must do to the other" to rations, because ratios are just division problems and fractions too]. You must multiply 7.5 by 7 too. You get 52.5 for sugar. Don't forget units. Your teacher might let is slide, but when you get to higher grades, 52.5 as a number? This will be marked wrong. Express the answer with units, and in this case, 52.5g of sugar.

Hope I helped!

You might be interested in
Please help!!!!<br>ignore the writing -_-​
marissa [1.9K]

Answer:

Haha once again 1200 and 8.5 are the answers

5 0
2 years ago
The ratio to cranberry juice and mango juice is 3:2 they used 4 quarts of cranberry juice last week. This week mindy and her fri
IrinaVladis [17]

Answer:

The amount of mango juice needed is 8 quarts

Step-by-step explanation:

To calculate the amount of mango juice needed, we will need to know the amount used the previous week.

Cranberry juice to Mango juice is 3:2 with cranberry used being 4 quarts. Let the quarts of Mango juice used be x

This means;

3/2 = 4/x

1.5 = 4/x

1.5x = 4

x = 4/1.5 quarts

Since they are making 3 times as much punch, the amount of mango juice needed will be 4/1.5 * 3 = 4 * 2 = 8 quarts

8 0
3 years ago
When a certain number is multiplied by 14 and the product is then multiplied by 32, the result is 60. what is the number?
Stolb23 [73]
It might be 0.133928571.....? I am unsure though. Sorry if this doesn't help
7 0
2 years ago
The product of c and 2
Arlecino [84]

Answer:

c2?

Step-by-step explanation:

3 0
3 years ago
The inequality x - y &gt; 0 is satisfied by point (-1, 1). <br> a. True <br> b. False
Paraphin [41]

Substitute the values into the inequality:

-1 - 1 > 0

-2 > 0

False

7 0
3 years ago
Read 2 more answers
Other questions:
  • If the outside temperature was 72 yesterday and today is 16 degrees cooler what is today's temperature
    12·2 answers
  • How to make average ?
    5·1 answer
  • Stephen deposited $1800 into a savings account for which interest is compounded weekly at a rate of 3.2%. How much interest will
    13·1 answer
  • Which statement is NOT true about the graph of y=5x?
    13·1 answer
  • A line with a slope of three is written in the form y=Mx+b what is the value of be if the line passes through the point (3,11)
    12·2 answers
  • Answer the question in the picture
    10·1 answer
  • Pls help me! I'm confused
    5·2 answers
  • Nothing. Finish my AP calc bc test giving some points out
    11·2 answers
  • The first step to solve 2x - 5 = 13 is:
    7·1 answer
  • May someone help me find A H AND K ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!