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Ostrovityanka [42]
3 years ago
12

Five more than the product of a number and 4 is equal to 8

Mathematics
1 answer:
Maru [420]3 years ago
3 0

Answer:

4x+5=8

x=\frac{3}{4}

Step-by-step explanation:

Let

x ---> the number

we know that

The algebraic expression is equal to multiply the number by 4, add 5 and equal 8

so

4x+5=8

Solve for x

subtract 5 both sides

4x=8-5\\4x=3

Divide by 4 both sides

x=\frac{3}{4}

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Answer: put the parallelograms in the box that says 2 pairs of parallel sides next put the squares in the box that says 4 right angles the put rectangles in the box that says 4 congruent sides and last put rhombuses in the middle box that says 4 right angles and 4 congruent sides

Step-by-step explanation:

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3 years ago
Solve 15x+3y=9,10x+7y=-4
TiliK225 [7]

Answer:

x = 1, y = -2

Step-by-step explanation:

15x + 3y = 9 (1)

10x + 7y = -4 (2)

3 × (2) - 2 × (1)

3 × (2)

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2 × (1)

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(3) - (4)

15y = -30

y = -30 / 15

y = -2

sub y = -2 into (1)

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3 years ago
Tell whether the graph of the Quadratic function y=-3x squared +x+1 opens upward or downward
8_murik_8 [283]

Answer:

down

Step-by-step explanation:

y = -3x^2 +x +1

The coefficient of the x^2 term is negative so it opens facing down

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8 0
3 years ago
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What are the solutions of the quadratic equation x2=9x+6
irina [24]

Question: What is the solution to the equation \bold{x\cdot \:2=9x+6}

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Explanation: \downarrow{\downarrow{\downarrow{}}}

[ Step One] Subtract 9x From Both Sides Of Equation

\bold{x\cdot \:2-9x=9x+6-9x}

[ Step Two ] Simplify Equation

\bold{-7x=6}

[ Step Three ] Divide Both Sides By -7

\bold{\frac{-7x}{-7}=\frac{6}{-7}}

[ Step Four ] Simplify

\bold{x=-\frac{6}{7}}

\bold{\rightarrow{}Rhythm \ Bot\leftarrow{}}

5 0
3 years ago
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frosja888 [35]

Answer:

46.8

Step-by-step explanation:

The equation is: 0.39 times 120=x

0.39 x 120= 46.8

29% of 120 is 46.8

4 0
2 years ago
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