All categories

3 years ago

I NEED HELP BADLY!!!

Mathematics

2 answers:

MAXImum [283]3 years ago

8 0

Answer:

8x-13=5x+8

8x-5x=13+8

3x=21

x=21/3

x=7

DaniilM [7]3 years ago

4 0

Vertical angles are where the top equals the bottom or the left equals the right angle. So we would do:
8x - 13 = 5x + 8
And then substitute.
3x = 21
x = 7

You might be interested in

Danae is choosing between two jobs. One job pays an annual bonus of $1,500 plus $120 per day worked. The second job pays an annu

Zigmanuir [339]

Answer:

Step-by-step explanation:

Job A:

Bonus of $1500
$120 per day for $d$ days is 120 multiplied by $d$ . Which is $120d$
Total Payment = $1500+120d$

Job B:

Bonus of $2500
$110 per day for $d$ days is 110 multiplied by $d$ . Which is $110d$
Total Payment = $2500+110d$

Solving these 2 equations for $d$ would tell us after how many days both job would pay the same. Answer choice C is correct.

4 0

3 years ago

Read 2 more answers

A person breathes 2.5 x 10^-4 in about cubic meters of air per second. How long does it take to breathe in 2.5 cubic meters of a

Ipatiy [6.2K]

Answer:

10⁴ seconds

Step-by-step explanation:

Given that,

A person breathes $2.5\times 10^{-4}$ in about cubic meters of air per second.

We need to find time taken to breathe 2.5 cubic meters of air.

In 1 sec = $2.5\times 10^{-4}$ m³ of air breathe

Let in x seconds, 2.5 m³ of air taken by the person.

$x=\dfrac{2.5}{2.5\times 10^{-4}}\\\\x=10^4\ s$

Hence, in 10⁴ seconds 2.5 m³ of air is taken by the person.

5 0

3 years ago

Which decimal is equivalent to 8/45?

Vilka [71]

Answer:

.1777... (7 is repeating)

6 0

2 years ago

3x2=7 5x4=23 7x6=47 9x8=79 10x9=?

Mashcka [7]

$(a\times b) = (a\times b) +(b -1) = c \\ \\ 3 \times 2 = (3\times 2) +(2-1) = 6 +1=7 \\ \\ 5 \times 4 = (5\times 4) +(4-1) = 20 +3=23 \\ \\ 7 \times 6 = (7\times 6) +(6-1) = 42 +5=47 \\ \\ 9 \times 8= (9\times 8) +(8-1) = 72 +7=79 \\ \\ \\ \\ 10 \times 9 = (10\times 9) +(9-1) = 90 +8=\boxed {\bf{98}}\\\sf {10\times 9 = \boxed{\bf {98}}}$

3 0

2 years ago

The Andersons rented 5 rectangular tables for $35 and 30 chairs for $60. Which quotients can be used to calculate the unit cost

stira [4]

Answer:

Step-by-step explanation:

5 tables for 35 bucks.....unit cost is 35/5 = $ 7 bucks per table

30 chairs for 60 bucks...unit cost is 60/30 = $ 2 bucks per chair

5 0

3 years ago

Read 2 more answers