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Natalija [7]
1 year ago
9

What value of x makes the followingequation true?21*(x - 16) = (2x - 32)Please help

Mathematics
1 answer:
Charra [1.4K]1 year ago
6 0

Let's solve for x the following question:

3/4 (x - 16) = 5/4 (2x - 32)

As I told you on the previous exercise:

Step 1: Solve the parenthesis

3/4 x - 48/4 = 10/4 x - 160/4

Step 2: Like terms

3/4x - 10/4x = -160/4 + 48/4

-7/4x = -112/4

Step 3: Simplifying

-7/4x = -28

Step 4: Multiplying by 4 at both sides:

-7/4x * 4 = -28 * 4

-7x = -112

-7x/-7 = -112/-7

x = 16

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rusak2 [61]

Answer:

there \: are \: 8 \: values \\  =  \frac{8}{17}  \times 100\% \\  = 47\%

6 0
3 years ago
Mrs.Manning is making cookies for the bake sale. She jas 3/4 cup of flour and needs 1/3 cup of flour for her chocolate chip cook
Sedbober [7]

Answer:

<em>The fraction of the flour Mrs. Mannng will use for her chocolate chip cookies is 4/9</em>

Step-by-step explanation:

<u>Fraction of Portion</u>

Suppose we have a number n and another number m such as m>n. The portion or fraction of size n of m is given by the quotient n/m.

For example, 3 pieces of cake out of a total of 6 make them a fraction of 3/6 = 1/2 of the whole cake, i.e. half of the total available.

Mrs. Manning needs 1/3 cup of flour to make cookies for the bake sale. She actually has 3/4 cups of flour. Calculate the fraction of needed against the available flour:

\displaystyle \frac{\frac{1}{3}}{\frac{3}{4}}

The division can be easier performed by multiplying by the reciprocal of the denominator:

\displaystyle \frac{1}{3}\cdot \frac{4}{3}=\frac{1*4}{3*3}

\displaystyle =\frac{4}{9}

The fraction of the flour Mrs. Mannng will use for her chocolate chip cookies is 4/9

3 0
3 years ago
4 friends evenly divided up a n- slice pizza. One of the friends , Harris, ate 1 fewer slice than he received. How many slices o
LenKa [72]

4 friends evenly dividing up a n - slice pizza

So each one get \frac{n}{4} slices of pizza.

 For example, if n = 12 slice then each friend gets 12/4 = 3 pieces.  If Harris ate one slice less then he ate  \frac{12}{4}-1=3 -1 =  2 pieces.

So the general expression for slices of pizza did Harris eat is

\frac{n}{4}-1


6 0
3 years ago
Read 2 more answers
Stella bought a dinette set on sale for $725. The original price was $1,299. To the nearest tenth of a percent, what was the rat
kifflom [539]

Answer:

40%

Step-by-step explanation:

1299-725= 574

574/1299 x 100 = 44.19%

8 0
3 years ago
URGENT PLEASE HELP!!!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (39pt
MariettaO [177]

Answer:

The first transit on one side of the trench is 18 ft higher than the other side of the trench. The transit is set at 4.5 above ground, therefore the transit lens is 18' + 4.5' = 22.5' above the location on the other side of the trench. The angle of depression is the angle formed by the horizontal and the line of sight to the other side and it is given as 31°. This forms a right angle triangle with height of 22.5' and an interior angle of 31°, Then

tan( 31°) = Height / base, with the base representing the width of the trench

base = Height / tan(31°) = 22.5' / tan(31°) = 37.45' is the width of the trench

4 0
3 years ago
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