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gayaneshka [121]
3 years ago
5

Robs number is equal to twice bobs number, cobs number is eight times larger than two less than bobs number, the sum of robs num

ber and cobs number is 22, what are each of their numbers?
Mathematics
1 answer:
Brut [27]3 years ago
6 0
B=B
R=2B
C=8(B-2)=8B-16
R+C=22
(2B)+(<span>8B-16)=22
B=3.8
R=7.6
C=14.4</span>
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3 years ago
If you can help me, I will mark you brainliest. Also earn 25 pts!!!Suppose that there are two types of tickets to a show: advanc
AVprozaik [17]

Answer:

Advance ticket costs $25

Same-day ticket costs $20

Step-by-step explanation:

Let x = the price of one the advance ticket.

Let y = the price of one same-day ticket.

The combined cost of one advance ticket and one same-day ticket is $ 45. This means

x + y = 45 - - - - - - 1

For one performance, 30 advance tickets and 20 same-day tickets were sold. The total amount paid for the tickets was $ 1150. This means

30x + 20y = 1150 - - - - - - - - -2

From equation 1, x = 45- y

Put x = 45- y in equation 2

30( 45-y) + 20y = 1150

1350 - 30y + 20y = 1150

-10y = 1150-1350

-10y = -200

y = 200/10 = $20

x = 45-y

x =45-20= $25

Advance ticket costs $25

Same-day ticket costs $20

7 0
3 years ago
Find the value of h(-67) for the function below. h(x) = -49x − 125 A. 3,283 B. -3,408 C. 3,158 D. -1.18
Paraphin [41]

Answer:

<h2>The answer is option C</h2>

Step-by-step explanation:

h(x) =  - 49x - 125

To find h(-67) , substitute the value of x that's - 67 into h(x). That is for every x in h(x) , replace it with - 67

We have

h( - 67) =  - 49( - 67) + 125 \\  = 3283 - 125

We have the final answer as

<h3>h( - 67) = 3158</h3>

Hope this helps you

3 0
3 years ago
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An angle measures 57 degrees . what is the measure of its complement?
shusha [124]
Complementary angles add up to 90 degrees. The complement of 57 is 33 degrees.
5 0
3 years ago
If the value of “y” varies directly with “x” and y = -8 when x = 20, find “y” if x = -4.
natali 33 [55]

Answer:

y = \frac{8}{5}

Step-by-step explanation:

Given y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = - 8 when x = 20

k = \frac{y}{x} = \frac{-8}{20} = - \frac{2}{5}

y = - \frac{2}{5} x ← equation of variation

When x = - 4, then

y = - \frac{2}{5} × - 4 = \frac{8}{5}

3 0
3 years ago
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