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
aleksklad [387]
3 years ago
12

a bag of concrate can be used to make a 5ft by 7ft porch.if you want to make a 20ft by 28ft,porch. how many bags of concreate do

you need? the answer is not 4
Mathematics
2 answers:
julia-pushkina [17]3 years ago
3 0
Calculate the area of each rectangular:

5x7= 35sqft

20x28= 560sqft

If 1 bag makes 35sqft, 560sqft is how many bags;
This is how I write the equation;

1x bag 35sqft

X 560sqft

Solution: (560x1) : 35 = 16bags

I solved this based on my way of logic. I'd appreciate if you let me know if the answer is correct.
il63 [147K]3 years ago
3 0

area of 5 x 7 porch = 5*7 = 35 sq. ft.

 area of 20 x 28 porch = 20 *28 = 560 sq. ft.


560 / 35 = 16

 so 16 bags are needed

You might be interested in
Please help with algebra!!! ill give brainliest
patriot [66]

Answer:

answer is attached in the image below

4 0
3 years ago
Read 2 more answers
The diameter of a circle is 14 in. Find its area in terms of
Luda [366]

Answer:

Given - Diameter of circle = 14 in

To find - Area of circle

Solution -

Diameter= 2 × Radius

14 = 2 × R

14/2 = R

7 = R

Area of circle= π r^²

22/7 × 7 × 7

22 × 7

154

7 0
2 years ago
Select the correct answer.
Marta_Voda [28]
Remember x is x and f(x) is same thing as y.

f(5) = 4

It is same thing as saying, when x = 5, y aka f(x) should be 4. Aka the point (5,4)

Let’s look at D, if x =5 then f(x)=5? No, it should equal 4. So this is wrong. It is also not linear. So NOT D

Lets look at C, if x =5 then
1/5(5)+3 =
5/5 + 3 =
1+3 =
4

So, f(x) aka y = 4. Is this correct? Yes when x =5, y indeed should equal 4, but it is not linear. So NOT C

Lets look at B, if x=5 then,
2^5 -28 =
32 - 28 =
4

So, f(x) aka y = 4. Is this correct? Yes when x =5, y indeed should equal 4, AND it is linear SO THE ANSWER IS B

Check A too, it gets y=14 so thats wrong as it is not 4.


5 0
2 years ago
Help please??!?? i don’t understandddddd
Zina [86]

Answer:

I think the answer is -\frac{u}{6}

Step-by-step explanation:

thats the answer i got in math.way

3 0
3 years ago
On a given blueprint, 1 inch = 12 feet. if the dimensions of a recreation room on the blueprint are 2 inches × 1.75 inches, what
DedPeter [7]
24 feet × 21 feet is the answer
4 0
3 years ago
Other questions:
  • one month, jerry worked 3 hours less than ben, and chris worked 4 more hours than ben. together they worked 196 hours. find the
    7·1 answer
  • A certain rectangular has a height of 4 length of 3 and width of 7 give the dimensions of second prism that has the same surface
    13·1 answer
  • I litteraly have 3 more minutes please help
    14·2 answers
  • For the function f(x) = 5x - 7 answer the following questions:
    11·2 answers
  • 15 points
    12·2 answers
  • SOMEONE HELP NO ONE HELPS ME
    6·1 answer
  • Can someone help me
    12·1 answer
  • WILL GIVE BRAINLIEST
    7·1 answer
  • Tell whether the triangle is a right triangle.<br><br> Please help
    10·1 answer
  • n a certain grocery store, strawberries cost $5.44 per pound ( 5.44 dollars/lb ). What is the cost per ounce
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!