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
How do I subtract a whole number from a fraction
jasenka [17]

Answer:

In order to subtract a whole number from a fraction, you first have to turn the hole number into a mixed fraction.

Step-by-step explanation:

Say your fraction was 2/3 and your whole number was 5.

They have to have like denominators

5/1 - 2/3 = 15/3 - 2/3

15/3 - 2/3 = 13/3

13/3 = 4 1/3

6 0
3 years ago
5.x.10=150 find x<br> 6.x.100=1000
Shkiper50 [21]

Answer:

I think X is 3. Sorry if it's wrong!

Step-by-step explanation:

5 x 3 = 15 x 10 = 150

3 0
2 years ago
Please help if your awake lol ugh it’s a question check the picture :)
ladessa [460]
I really hope that helps cause I went all out and best of wishes!!

8 0
3 years ago
If the circumference of the circle is 37.68 units, what is the area? (Use 3.14 for pi .)
solniwko [45]

Answer: 113.04

Step-by-step explanation: The equation for the area of a circle is pi r squared so you have to find the radius first. To find the radius, find the diameter first. A way to do this which was easiest for me was dividing 37.68 by pi (3.14), which is 12. Divide the diameter by 2 to find the radius, 6.

Now use the equation from the beginning, pi r squared. So plug in pi as 3.14, then the radius as 6. It is important to always square the radius first, which would be 36. Now multiply 36 by 3.14, and there should be your answer.

7 0
3 years ago
I need help with this !! chart
Burka [1]

Answer:

Make coordinates with this table.

Step-by-step explanation:

What I think from these tables is that you can make coordinates with these points. Here are the instructions for you to follow-

  1. See the "y" and "x". These are the axis. So make coordinates with these. Ex- (0,3), (1,5) and so on
  2. Plot these coordinates in a graph paper.
  3. After plotting them, you might find the shape it made.

I hope it helps you.

3 0
3 years ago
Other questions:
  • Marcel is purchasing a board to build a bookcase. He wants to divide the board into 1.75 foot sections . He need six sections .
    8·1 answer
  • What's the answer to this problem?
    11·1 answer
  • A bag contains 3 red marbles, 7 blue marbles and 5 green marbles. If three marbles
    6·1 answer
  • The value of a dirt bike decreases by 20% each year. If you purchased this dirt bike today for $500, to the nearest dollar how m
    5·1 answer
  • Nilda has $25 in her savings account. She plans to save 6.50 per week from her salary. Iona has $50 in her account but can save
    14·1 answer
  • F(x)=6x-4 what is f(x)whence=8
    15·1 answer
  • 5k - 9 - 2k + 3 = 3k - 6
    15·1 answer
  • 9^2(x-1) = 27^x how do I solve this equation?
    8·1 answer
  • The half-life of a radioactive kind of strontium is 10 hours. How much will be left after 40 hours, if you start with 80 grams o
    9·1 answer
  • Draw the circle ( x − 1 ) 2 + ( y + 2 ) 2 = 9
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!