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lakkis [162]
3 years ago
15

Simplify 3(x+7)-2(4x-3)=

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
8 0

Answer: 11x+15

Step-by-step explanation:

3(x+7) -2 (4x-3)=

3x+21 - 8x-6

+8 +8

11x+21-6=

11x+15=

Andre45 [30]3 years ago
4 0

Answer:

−5x+27

Step-by-step explanation:

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Ellen had 2 ¼ metres of ribbon. If she used ⅓ of this, how much did she use?
iragen [17]

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She used 3/4 meters of ribbon.

Step-by-step explanation:

2 1/4 divided by 3.

2 1/4= 9/4

9/4 divided by 3

9/4*1/3

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7 0
3 years ago
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Four interior angles of a pentagon measure 156°, 72°, 98°, and 87°. What is the measure of the final interior angle?
Annette [7]

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127 degrees

Step-by-step explanation:

540 degrees is what the interior of a pentagon should add up to. So you do 540-156-72-98-87=127. The measure of the final interior angle is 127 degrees.

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pav-90 [236]

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2 years ago
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Cerrena [4.2K]

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6 0
3 years ago
Francesca leaves her home and Drive South 150 km. Then she drives West 70 km. At this point, she drives North 30 km. Finally, sh
Sveta_85 [38]

To find the distance between her home and her latest position:

According to the question, the diagram is,

Consider the right triangle,

AB=120 km

BC=50 km

To find AC:

Using Pythagoras theorem,

\begin{gathered} AC^2=AB^2+BC^2_{} \\ =120^2+50^2 \\ =14400+2500 \\ =16900 \\ =130\text{ km} \end{gathered}

Hence, the distance between the new position and her home is 130 km.

8 0
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