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
Umnica [9.8K]
3 years ago
9

A child ate 30 grams of cereal for breakfast and her brother ate 40% more than that. How many grams of cereal did the brother ea

t?​
Mathematics
1 answer:
bixtya [17]3 years ago
6 0

Answer:

42 grams

Step-by-step explanation:

You might be interested in
Solve for X: 2(x + 5) + 3(x – 2) = 29<br> please explain too! will mark brainliest
8090 [49]

Answer:

5

Step-by-step explanation:

2x+10+3x-6=29

5x+4=29

5x=25

x=5

3 0
4 years ago
kellen's bill at a restaurant before tax and tip is $22.00. If tax is 5.25% and he wants to leave 15% of the bill including the
Diano4ka-milaya [45]
You would do 22.00 Times 5.25%= $1.16 Then add them and get 23.16 This is for tax.For tip do 23.16 Times 15% and get and get 3.47 then add that to 23.16 and get $26.63. It may not be right i'm not great at math but i think its right.
5 0
3 years ago
Shade in some or all of the grids to show that 2 ones is the same as 20 tenths
scZoUnD [109]
Given three grids with each grid representing one whole.
Each grid represents 1 ones and each vertical bar of a grid represent 1 tenth.
There are 10 vertical bars in each grid, hence each grid represent 1 ones = 10 tenths and 2 grids represent 2 ones = 20 tenths.

Therefore, two complete grids are to be shaded to <span>show that 2 ones is the same as 20 tenths</span>
4 0
3 years ago
The cost to produce a product is modeled by the function f(x) = 5x2 − 70x 258, where x is the number of products produced. compl
ad-work [718]

The minimum cost to produce the product is $7.

What are functions?

  • A function from a set X to a set Y allocates exactly one element of Y to each element of X.

To determine the minimum cost:

We have to determine the minimum cost of producing this product.

Since f(x) = 5x^{2} -70x+258.

Now, consider the equation 5x^{2} -70x+258= 0.

Dividing the above equation by 5, we get

x^{2} -70x/5+258/5=0\\x^{2} -14x+258/5=0

Now, considering the coefficient of 'x', dividing it by '2' and then adding and subtracting the square of the number which we got after dividing.

Since the coefficient of 'x' is 14, and half of 14 is '7'.

So, adding and subtracting from the above equation.

x^{2} -14x+(7)^{2} -(7)^{2}+258/5=0\\x^{2} -14x+49 -49+258/5=0\\(x-7)^{2} -49+258/5=0\\(x-7)^{2} +258-245/5=0\\(x-7)^{2} +13/5=0\\5(x-7)^{2} +13=0

Now, we have to determine the minimum cost to produce the product.

Since f(x) = 5x^{2} -70x+258.

f'(x) = 10x-70

Now, let f'(x)=0

10x-70=0\\10x=70

Therefore, x=7

Now, consider which is greater than 0.

Therefore, x= 7 is the minimum cost.

Know more about functions here:

brainly.com/question/25638609

#SPJ4

5 0
2 years ago
Please answer i need a good grade
beks73 [17]
Answer for this question: X < -20
7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the sum of the arithmetic sequence. 5, 7, 9, 11, ..., 23
    5·1 answer
  • What is 30=8+4(z-2) step by step?
    9·1 answer
  • please help with this it would mean a lot (you don't have to give the answer just help me understand it.) thanks
    14·1 answer
  • What is the solution to the equation sqrt5X-7= sqrt3X+5?<br> x = 1<br> x = 6<br> x = 12<br> x = 24
    9·1 answer
  • What is next step in solving this equation <br> 32x+2=40
    7·1 answer
  • in the year 2010, the luxury bike industry had two bike manufactures splendor and passion with the market shares of 30% and 70%,
    12·1 answer
  • There are 10 computers and 5 students. How many ways are there for the students to sit at the computers if no computer has more
    15·1 answer
  • The length of a couch is 200 centimeters. This is 16 centimeters less than 3 times the width of a matching chair. How wide is th
    8·1 answer
  • £3 is €4. <br> Convert £30 to euros.
    8·1 answer
  • Solve for x and y on the regular hexagon ABCDEF.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!