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3 years ago

Jeb has to pay a plumber

Mathematics

1 answer:

jek_recluse [69]3 years ago

6 0

He worked 6.5 (6 and a half) hours . 40x + 65 would be the equation then you substitute 6.5 for x .

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A right-angled triangle has one side of length 1.5 cm. Its hypotenuse is 6 cm. How long is its other side?

irga5000 [103]

Answer:

Step-by-step explanation:

pythagorean theorem. a^2+b^2=c^2

1.5^2+b^2=6^2

2.25+b^2=12

12-2.25=b^2

b^2=9.75

take the square root

b=3.12

7 0

3 years ago

Read 2 more answers

The first side of a triangle is 3 inches shorter than the second side, and 2 inches longer than the third side. How long is each

ziro4ka [17]

Answer:

the length of the first side of the triangle is $\frac{28}{3}\ in$

the length of the second side of the triangle is $\frac{37}{3}\ in$

the length of the third side of the triangle is $\frac{19}{3}\ in$

Step-by-step explanation:

Let

x-----> the length of the first side of a triangle

y----> the length of the second side of a triangle

z---> the length of the third side of a triangle

we know that

$x=y-3$

$y=x+3$ -----> equation A

$x=z+3$

$z=x-3$ -----> equation B

The perimeter of the triangle is equal to

$P=x+y+z$

$P=28\ in$

$28=x+y+z$ -----> equation C

substitute equation A and equation B in equation C

$28=x+(x+3)+(x-3)$

solve for x

$28=3x$

$x=\frac{28}{3}\ in$

Find the value of each side

the first side of a triangle is x

$x=\frac{28}{3}\ in$

the second side of a triangle is y

$y=\frac{28}{3}+3=\frac{37}{3}\ in$

the third side of a triangle is z

$z=\frac{28}{3}-3=\frac{19}{3}\ in$

7 0

3 years ago

The cost of a blackberry phone at John's Electrontics is $249.99. this cost includes a twelve percent sale tax. How much is the

slamgirl [31]

Answer:

$219.99

Step-by-step explanation:

To find the price without the sale tax you find the opposite of 12%, which would be 88%. Then you multiply .88 by 249.99 to get 219.9912, and since it is money you round to the hundreth to get 219.99.

5 0

3 years ago

Drag and drop each pair of triangles to indicate whether the triangles are similar or not similar.

vovikov84 [41]

Put the triangle inside of each other lining up the 90° angle corners.

6 0

3 years ago

HELPPPP!!!!! I have a review sheet and I don’t know what to do. I have pictures of the packet but I also need the equation “to s

Sauron [17]

1. 5,000 times 1.09 times 5 = 2,693

2. 5,000 - 6,500= 1500 ÷4 = 3.3%

8 0

3 years ago