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3 years ago

How do you work out this problem?3x+15=66

Mathematics

2 answers:

vivado [14]3 years ago

4 0

3x + 15 = 66

3x = 51

Divide 51 by 3 which equals 17.

Alex3 years ago

4 0

Get 3x by itself then divide it by the number on th other side of the equation

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Steve made a sign for his room that is shaped like a triangle. It is 4.5 feet long and 3 feet high. He wants to make another sig

Fed [463]

Answer: PART A : $\frac{4.4}{x}$ = $\frac{3}{4}$

PART B : 5.9 FEET

Step-by-step explanation:

Length of the first sign = 4.4 feet

height of the first sign = 3 feet

Length of the second sign = x feet

height of the second sign = 4 feet

If two shapes are similar , then the ratio of their sides are equal,

That is ;

$\frac{h_{1}}{h_{2} }$ = $\frac{L_{1}}{L_{2} }$

PART A

$\frac{4.4}{x}$ = $\frac{3}{4}$

PART B

$\frac{4.4}{x}$ = $\frac{3}{4}$

cross multiplying , we have

3x = 4.4 x 4

3x = 17.6

Divide through by 3

x = 17.6/3

x = 5.86666666666667

x≈ 5.9 feet

Therefore , the length of the new sign is 5.9 feet

6 0

3 years ago

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Svetradugi [14.3K]

Favourite starts fifth letter down farthest left column

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3 years ago

The fifth grade students 15/20 went to the book fair of the students who went to the book fair 12/16 bought at least one book wh

grin007 [14]

Answer:

$\frac{9}{16}$

Step-by-step explanation:

Out of a total of 1, $\frac{15}{20}$ went to the fair and $\frac{12}{16}$ OF THOSE, bought atleast one book.

To find the fraction of students who bought at least one book, we will multiply both the fractions. That is the answer. Shown below:

$\frac{15}{20}*\frac{12}{16}\\=\frac{3}{4}*\frac{3}{4}\\=\frac{9}{16}$

Answer is $\frac{9}{16}$

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2 years ago

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aleksklad [387]

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3 years ago

2(x-3)(x-3)-8 in standard form

Delvig [45]

Answer:

2x^2-12x+10

Step-by-step explanation:

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3 years ago

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