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Grace [21]
4 years ago
12

A contractor charges $1,200 for 100 swat feet of roofing installed. At this rate, how much does it cost to have 1,000 square fee

t installed?
Mathematics
1 answer:
Oliga [24]4 years ago
3 0

Answer:

12000

Step-by-step explanation:

1200=100

x=1000

x=100*1200/100

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katie has read 34% of her book. if she has read 85 pages, does she have more than or fewer than 125 pages left to read?
Pepsi [2]
Okay so first I just go to the wording of the first part, reading it again as something like  "85 is 34% of what number?" Then I translate it by putting an = for the "is", an x (times) for the "of", and a variable, w for "what number". Because it's a percent, we get rid of the % sign by writing 34/100, or .34 . Then we just have:
85=.34 x a
Divide off the .34
a=250
Now for the second part. 250 is the total number of pages, so subtract 85 to get the number of pages she hasn't read.
250-85=165
So she has more than 125 pages left.
5 0
4 years ago
Helpp !! I Dont Understand This !
makvit [3.9K]
How to solve shaded regions on a trapezoid is simple.
First find the area of the whole trapezoid, or W but it already gives us that as 21.66 in squared.
Next, find the area of the non shaded region, or NS.
3.8*4.6=17.48 in
Lastly, subtract the NS from the W.
21.66 -17.48 = 
NS= 17.48 in squared.
W= 21.66 in squared.
S= 4.18 in squared.
 
The answer is B- 4.18 in Squared








4 0
4 years ago
I will give you brainelist
Lelu [443]

Answer:

MP > OP

Step-by-step explanation:

5 0
3 years ago
A recipe of salad dressing calls for ¼ cup vinegar to ⅔ cup oil. How many cups of oil are needed for each cup of vinegar?
Akimi4 [234]

Answer:

2\frac{2}{3} \ cups  of oil are needed for each cup of vinegar.

Step-by-step explanation:

Given:

A recipe of salad dressing calls for ¼ cup vinegar to ⅔ cup oil.

Now, to find the cups of oil are needed for each cup of vinegar.

So, we solve by using unitary method:

If  \frac{1}{4} cup of vinegar is needed for oil of \frac{2}{3} cup.

So, 1 cup of vinegar is needed for oil of = \frac{2}{3} \div\frac{1}{4}

= \frac{2}{3}\times 4  

(the fractions turns reciprocals as the division changes into multiplication)

= \frac{8}{3}

= 2\frac{2}{3} cups.

Therefore, 2\frac{2}{3} \ cups  of oil are needed for each cup of vinegar.

7 0
3 years ago
If f(x)=3<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}" align="absmiddle" class="late
Anvisha [2.4K]

Answer:

\sf f(-3) = 23

<u>given:</u>

\sf f(x) = 3x^2 -4

to find the output, replace x with the given integer.

solve:

\sf f(-3) = 3(-3)^2 -4

\sf f(-3) = 3(9) -4

\sf f(-3) = 27 -4

\sf f(-3) = 23

5 0
2 years ago
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