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dusya [7]
3 years ago
7

Show me and example of a multi step equation and solve.

Mathematics
1 answer:
Maru [420]3 years ago
6 0
<span><span>problem<span>Solve 6x + 5 = 10 + 5x. Check your solution.</span></span><span><span> </span><span><span>This equation has x terms on both the left and the right. To solve an equation like this, you must first get the variables on the same side of the equal sign.</span> <span>You can subtract 5x on each side of the equal sign, which gives a new equation: x + 5 = 10. This is now a one-step equation!</span>  Subtract 5 from both sides.</span></span><span>Check <span><span>Check your solution by substituting 5 for <span>x </span>in the original equation.</span> This is a true statement, so the solution is correct.</span></span><span>Answerx<span> = 5</span><span> </span></span></span>
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Helpppppp pleaseeeee
Kaylis [27]

Answer:

x + y = 90 - - - (1)

y = 1/4x - - - - (2)

Step-by-step explanation:

x = larger acute angle

y = smaller acute angle

Recall:

A right angle measures 90°

Sum of angles in a triangle = 180°

y = 1/4x

Hence :

90 + x + y = 180

x + y = 180 - 90

x + y = 90 - - - (1)

y = 1/4x - - - - (2)

Put y = 1/4x in (1)

x + 1/4x = 90

1.25x = 90

x = 90 / 1.25

x = 72

x + y = 90

72 + y = 90

y = 90 - 72

y = 18

4 0
2 years ago
Suppose that administrators of a large school district wish to estimate the proportion of children in the district enrolling in
11Alexandr11 [23.1K]

Answer:

95% z-confidence interval for the proportion of all children enrolled in kindergarten who attended preschool is between a lower limit of 0.528 and an upper limit of 0.772.

Step-by-step explanation:

Confidence interval = p + or - zsqrt[p(1-p) ÷ n]

p is sample proportion = 39/60 = 0.65

n is the number of children sampled = 60

Confidence level (C) = 95% = 0.95

Significance level = 1 - C = 1 - 0.95 = 0.05

Divide significance level by 2 to obtain critical value (z)

0.05/2 = 0.025 = 2.5%

z at 2.5% significance level = 1.96

zsqrt[p(1-p) ÷ n] = 1.96sqrt[0.65(1-0.65) ÷ 60] = 1.96sqrt[0.2275 ÷ 60] = 1.96sqrt(3.792×10^-3) = 1.96×0.062 = 0.122

Lower limit = p - 0.122 = 0.65 - 0.122 = 0.528

Upper limit = p + 0.122 = 0.65 + 0.122 = 0.772

95% confidence interval is between 0.528 and 0.772

5 0
2 years ago
Please answer 26 and 27 please thank you
ser-zykov [4K]

Answer:

Part 26) 3\frac{1}{4}\ in

Part 27) 2\frac{2}{3}\ cups

Step-by-step explanation:

Part 26)

we know that

The length of Alana's hair was 9 3/4 inches

After her haircut, the length was 6 1/2 inches

To find out how many inches did she have cut subtract 6 1/2 from 9 3/4

but first

Convert mixed number to an improper fraction

9\frac{3}{4}\ in=\frac{9*4+3}{4}=\frac{39}{4}\ in

6\frac{1}{2}\ in=\frac{6*2+1}{2}=\frac{13}{2}\ in

Find the difference

\frac{39}{4}-\frac{13}{2}=\frac{39-26}{4}=\frac{13}{4}\ in

Convert to mixed number

\frac{13}{4}\ in=\frac{12}{4}+\frac{1}{4}=3\frac{1}{4}\ in

Part 27)

we have that

Emeril used a total of 7 1/4 cups of flour to make three pastries

He used 2 1/4 cup of flour for the first and 2 1/3 cups of flour for the second

To find out how much cups of flour Emeril use for the third pastry, subtract the sum of the cups of flour used in the first and second pastry from the total cups of pastry used

Let

x ----> number of cups of flour used in the third pastry

x=7\frac{1}{4}-(2\frac{1}{4} +2\frac{1}{3})

but first

Convert mixed number to an improper fraction

7\frac{1}{4}\ in=\frac{7*4+1}{4}=\frac{29}{4}\ cups

2\frac{1}{4}\ in=\frac{2*4+1}{4}=\frac{9}{4}\ cups

2\frac{1}{3}\ in=\frac{2*3+1}{3}=\frac{7}{3}\ cups

substitute

x=\frac{29}{4}-(\frac{9}{4} +\frac{7}{3})

x=\frac{20}{4} -\frac{7}{3}

x=\frac{20*3-7*4}{12}

x=\frac{32}{12}\ cups

Simplify

x=\frac{8}{3}\ cups

Convert to mixed number

\frac{8}{3}=\frac{6}{3}+\frac{2}{3}=2\frac{2}{3}\ cups

4 0
2 years ago
A triangle has the length of 6cm and height of 8cm. The area of the rectangle is 5 times the area of the triangle. The rectangle
Y_Kistochka [10]
Area of triangle = 24cm
Area of rectangle = 120
therefore, w x 12 = 120
w = 10
4 0
2 years ago
Read 2 more answers
The equation y = 8.1x models the relationship between the number of hours Alexander works, x, and the dollar amount he earns, y.
MA_775_DIABLO [31]

Answer:

what grade is this

Step-by-step explanation:

it looks hecka hard

7 0
3 years ago
Read 2 more answers
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