3 years ago

for what value of the variable is the value of the expression -3(2x+1) is 20 greater than the expression 8x+5

Mathematics

1 answer:

stiv31 [10]3 years ago

6 0

Answer:

- 3 ( 2x+1 ) 20

8x+5

_____________

8x+5×20 -3 ( 2×12.5+1 )

8×=100 -3 ( 25+1 )

100÷8= 12.5 -3 ( 26 )

×= 12.5

-3 ( 26 )

-3×2 + -3×6 = -6+ -18 = -24

-24

You might be interested in

Can y’all help me on question 19?!

m_a_m_a [10]

Answer: 178.31

Step-by-step explanation: subtract 574.54 by 396.23

8 0

3 years ago

Read 2 more answers

The area of a square patch of grass is 25 square meters .how long is each side of the patch

77julia77 [94]

The area of a square with sides of length s is

A=s^2, and we are told A=25 so

s^2=25

s=√25

s=5m

5 0

2 years ago

Read 2 more answers

Solve for x using the quadratic formula. 4x^2-3x+8=0

Paraphin [41]

Answer:

answer : x = 3±√ 119 / 16

is correct answer ...plz mark my answer as brainlist ... plzzzz and plz vote me as brainlist

8 0

3 years ago

Read 2 more answers

Find the new price after the markdown given. Round to the nearest cent if necessary. $5,250 marked down 15%

PIT_PIT [208]

Marked down 15% means the new price would be 85% of the original price ( 100%-15% - 85%)

Multiply the original price by 85%:

5250 x 0.85 = 4462.50

The new price is $4,462.50

4 0

3 years ago

Pls help w these thx <33

stepladder [879]

Answer:

36.81233927

13.02532494

Step-by-step explanation:

You need to use the law of sine for both of them

the law of sine is as follows:

$\frac{a}{\sin(A)}=\frac{b}{\sin(B)}=\frac{c}{\sin(C)}$

Question 1:

$\frac{15}{\sin(64)}=\frac{10}{\sin(y)}\\y=36.81233927$

Question 2:

Let x= AB

Start by solving for the missing angle, 53

$\frac{8.4}{\sin(31)}=\frac{x}{\sin(53)}$

x= 13.02532494

I will leave you to round the answers

7 0

2 years ago