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Svetradugi [14.3K]
3 years ago
11

Find the value of x. I got 15 as my answer, but it was incorrect.

Mathematics
2 answers:
77julia77 [94]3 years ago
6 0
Add them all and make usual to 180
the x value is equal to 10
Lina20 [59]3 years ago
5 0
7x +(3x-5)+(8x+5)=180
simplify
18x=180
divide by 18
x=10
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The price of an item has dropped to $84 today. yesterday it was $120 . find the percentage decrease.
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The price of an item has dropped to $84 today. yesterday it was $120 . find the percentage decrease.

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What is 8% of 200 estimated?
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A scale mode of a building is 8 in. by 12 in. The scale is 1 in:15 ft. What are the dimensions of the actual building? (*you nee
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120 ft by 180 ft

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If every inch is 15 feet multiply 8 inches by 15 and then 12 by 15 to get your dimensions

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When x = 5, the value of the expression 20/-25+x–2(x – 10) is –21 –9 9 19
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Joel wanted his mom to buy a super-sized box of his favorite cereal, but his mom didn't think it would fit in her cupboard. The
Lorico [155]
<h3><u>Given</u>:-</h3>

  • Volume 6,900 cm^3
  • Length = 23 cm
  • Width = 10cm

<h3><u>To Find</u>:-</h3>

  • Height of box ??

<h3><u>Solution</u>:-</h3>

\\\diamond{\underline{\underline{\sf {\;\; Calculating\; Height\;  of  \; box :-}}}}\\

\\ \pink \star \:  \: {\underline{\boxed {\bf{  Volume_{ \red{ \{Rectangle \}}}  \: = l  \times w  \times  h }}} }\; \red\bigstar  \\

Where,

  • » l denotes Length
  • » w denotes Width
  • » h denotes Height

\\  \sf \implies \: {Volume_{ \red{ \{Rectangle \}}}  \: = l  \times w  \times  h} \\

\\  \sf \implies \: { 6,900 \:   = \: 23 \:    \times  \: 10 \:   \times  h} \\

\\  \sf \implies \: { 6,900 \:   = \:  230 \:   \times \:   h} \\

\\  \sf \implies \: {  \: h  \:   = \:   \frac{6900}{230}  \:  } \\

\\  \sf \implies \: {  \: h  \:   = \:   30 \: {cm }^{3}   \:   } \\

\\ \implies{\underline{\boxed{\frak { Height = 30  \: cm^3 }}}} \; \purple\bigstar \:  \\

\\\qquad \rule{120pt}{3pt}\\

Therefore , the Volume of the Box is 30 cm ³.

5 0
2 years ago
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