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Mnenie [13.5K]
3 years ago
8

Jeff uses the expression 2(3b + 1) to determine how many books (b) he needs to order for his store. If b= 12, how many books sho

uld Jeff order?
Mathematics
2 answers:
arlik [135]3 years ago
7 0

Answer:

74 books

Step-by-step explanation:

2(3b+1)

2(3(12)+1

2(36+1)

2(37)

74

pychu [463]3 years ago
5 0

Answer:

D

Step-by-step explanation:

I took the test and If b = 12, then 2(3 * 12 + 1) = 74.

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Write the equation of the line represented on the graph.
Marianna [84]

Answer:

y=-\frac{3}{2} x+3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
I need help asap!!!!
kolbaska11 [484]

Answer:

24: x = 31

25: x = 15

Step-by-step explanation:

Remark

24 is supplementary which means that the two angles add to 180o which is on the right hand side of the equation

25 is complementary which means that the two angles add to 90o which is on the left hand side of the equation

Twenty Four

3x + 31 +2x - 6 =  180              Collect the like terms

3x +2x + 31 - 6 = 180               Do the adding and subtracting.

5x + 25 = 180                          Subtract 25 from both sides

5x + 25 - 25 = 180 - 25

5x = 155                                   Divide by 5

x = 155/5

x = 31

Check

3x + 31 = 3*31 + 31

3x + 31 = 93 + 31

3x + 31 = 124

2x - 6 = 2*31 - 6 = 62 - 6 = 56

Total 124 + 56 = 180 as it should.

Twenty Five

Equation

3x+ 4x -  15 = 90

Solution

7x - 15 = 90        Like terms have been collected on the left.

7x = 90 + 15       15 was added to both sides

7x = 105              Divide by 7      

x = 15                       I'll leave the check to you


5 0
3 years ago
Someone please please help<br> me i only have a few minutes left !!!
Juli2301 [7.4K]

Answer:

5 8/15 I rly hope this helps man

8 0
2 years ago
I need help ASAP 10 Points!!!
swat32

Purple color figure is similar to the original figure.

<u>Solution:</u>

Property of similar polygon:

<em>Similar polygons have same shape, corresponding angles are congruent and the corresponding sides are in the same ratio.</em>

(1) <u>Compare original figure with green color figure:</u>

Angles of the original figure:

37°, 53° and 90°.

Angles of the green color figure:

67°, 23° and 90°

These two angles of the triangles not congruent angles.

Hence these shapes are not similar.

(2) <u>Compare original figure with yellow color figure:</u>

Angles of the original figure:

37°, 53° and 90°.

Angles of the yellow color figure:

67°, 23° and 90°

These two angles of the triangles are not congruent angles.

Hence these shapes are not similar.

(3) <u>Compare original figure with purple color figure:</u>

Angles of the original figure:

37°, 53° and 90°

Angles of the purple color figure:

37°, 53° and 90°

These two triangles have same shape and congruent angles.

Ratio of the sides:

$\frac{3}{6}=\frac{1}{2} , \ \frac{4}{8}=\frac{1}{2} , \ \frac{5}{10}=\frac{1}{2}

These two triangles have same ratio.

Hence these shapes are similar.

Hence purple color figure is similar to the original figure.

4 0
3 years ago
P=12 when q=8 and r=3​
guapka [62]
<h3>we can make the below formulas with this information:</h3>

1. \frac{p}{q}  = r \\ 2.q \times r = p \\ 3. \frac{p}{r}  = q \\  4.\frac{q \times r}{p}  = 1

<h3>hope it helped you :-)</h3>
8 0
3 years ago
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