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3 years ago

PLS HELP The width of Ben's rectangular family

Mathematics

1 answer:

marin [14]3 years ago

3 0

Answer:

19 feet

Step-by-step explanation:

The perimeter is calculated by multiplying the sum of length and width by 2

width is 3 less than length so if we call the width x the length would be x + 3

2×(x + x + 3) = 4x + 6 and

4x + 6 = 70 subtract 6 from both sides

4x = 64 divide both sides by 4

x = 16

The length is x + 3 so the answer is 19 feet

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What can each term of the equation be multiplied by to eliminate the fractions before solving? 1/2 x – 5/4 + 2x =5/6 + x

Karo-lina-s [1.5K]

The equation

$\dfrac{1}{2}x-\dfrac{5}{4}+2x=\dfrac{5}{6}+x$

consists of five terms, three of them contain fractions. The denominators of these fractions are 2, 4 and 6.

Find the LCM(2,4,6). Since

2=2;
4=2·2;
6=2·3,

then LCM(2,4,6)=2·2·3=12.

Thus, you have to multiply each term of the equation by 12 to eliminate the fractions.

Answer: 12

8 0

4 years ago

Read 2 more answers

Logan, a sales clerk in a book store, earns a base salary of $1,700 per month plus a commission of 5 percent on monthly sales ov

shepuryov [24]

1,700+.05(X-600)=2,100
-1700. -1700
.05(X-600)= 400
.05x-30 =400
+30=+30

.05x=. 430
Divided by .05
X=. 8,600

5 0

4 years ago

14. Solve the equations:

boyakko [2]

Answer: C

Step-by-step explanation:

5(z - 4) - z = 4z - 20

5z - 20 - z = 4z - 20

4z - 20 = 4z - 20

-4z -4z

-20 = -20

TRUE

Since it is a true statement, there are infinitely many solutions

*******************************************************************************

Answer: D

Step-by-step explanation:

Eric: 1 hot dog

Mark: 1 hot dog + 1 soda + 1 peanuts

Total: 2 hot dogs + 1 soda + 1 peanuts

= 2(3.50) + x + 1(4.00)

= 7.00 + x + 4.00

= x + 11.00

Eric paid 3.00: x + 11.00 - 3.00

x + 8.00

Mark paid 11.50 which was the balance owed: 11.50 = x + 8.00

11.50 = x + 8.00

-8.00 -8.00

3.50 = x

the soda cost $3.50

7 0

3 years ago

1.7 6/5 2.4 25/25 3.28/3 what is the lowest term?

liberstina [14]

Answer:

$\frac{28}{3}$

Step-by-step explanation:

number 1 equals 8 1/5

number 2 equals 5

number 3 equals 9 1/3

5 0

2 years ago

A surveyor measures the angle of elevation to a point on a mountain to be 15

bija089 [108]

Answer:

1.61 mile

Step-by-step explanation:

Tan 15 = opposite / adjacent = height / 6 miles

soooo 6 tan 15 = height = ~ 1.61 mile

3 0

2 years ago