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astra-53 [7]
3 years ago
6

If x = 4 and y = 7, evaluate the following expression: 20 – (3y - 4x)

Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0

Answer:

15

Step-by-step explanation:

20 - (3 x 7 - 4 x 4)

20-(21 - 4 x 4)

20-(21 - 16)

20 - (5)

20 - 1 x 5

20 - 5 = 15

svetoff [14.1K]3 years ago
7 0

Answer:

20 - (3(7) - 4(4)) = 15

Step-by-step explanation:

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Simplify the following expression.
spin [16.1K]

Answer:

0y^2 + 2z^3 + 3y^3

Step-by-step explanation:

4 0
2 years ago
Help with this one please
DedPeter [7]
24+11= 35 fishes in total

Caught Fish is 24 out of 35

24/35

Into percentage

\frac{24}{35} \times 100

=68.57

therefore, nearest tenth

68.6%
8 0
3 years ago
Read 2 more answers
Doug earns $10.50 per hour working at a restaurant. On
alexira [117]
First, add all of the working hours.
1 \frac{3}{4} + 2 \frac{1}{3} + 1 \frac{5}{12}

Since the denominators are different, make them all the same.
1 \frac{9}{12} + 2 \frac{4}{12} + 1 \frac{5}{12}

Add everything together.
4 \frac{1}{12} + 1 \frac{5}{12} = 5 \frac{6}{12}

Then, simplify.
5 \frac{1}{2} or 5.5

Multiply the time by the salary.
<span>5.5*10.5= Doug earned $57.75</span>
3 0
3 years ago
Show how u got the answer 309×42
luda_lava [24]
                3            
                1
                390
              x  42
               -------
                1282
              1564
          ----------------
                       
the answer would be 16380
Hope this helped :)
4 0
4 years ago
2(y+7)=46 Solve for y. Simplify equation as much as possible
Marianna [84]

Answer:

y=16

Step-by-step explanation:

2(y+7)=46

2y+14=46

    -14  -14

2y=32

2y/2 = 32/2

y = 16

5 0
3 years ago
Read 2 more answers
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