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3 years ago

Need help with this problem

Mathematics

1 answer:

klio [65]3 years ago

7 0

Answer:

Step-by-step explanation:

the answer is C (i think)

hope it helped

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The play took in $744 one night. The number of $8 adult tickets was 12 less than twice the number of $5 child tickets. How many

vfiekz [6]

Answer:

68 adult tickets and 40 child tickets were sold.

Step-by-step explanation:

Create a system of equations where a is the number of adult tickets sold and c is the number of child tickets sold:

8a + 5c = 744

a = 2c - 12

Solve by substitution by substituting the second equation into the first one:

8(2c - 12) + 5c = 744

16c - 96 + 5c = 744

21c - 96 = 744

21c = 840

c = 40

So, 40 child tickets were sold. Plug this into the second equation to solve for a:

a = 2c - 12

a = 2(40) - 12

a = 80 - 12

a = 68

So, 68 adult tickets and 40 child tickets were sold.

3 0

3 years ago

Simplify: (-5a³-7a² +3)+(-9a³ +5a² +9)

DedPeter [7]

Answer: =−14a3−2a2+12

Step-by-step explanation:

−5a3−7a2+3−9a3+5a2+9

=−5a3+−7a2+3+−9a3+5a2+9

Combine Like Terms:

=−5a3+−7a2+3+−9a3+5a2+9

=(−5a3+−9a3)+(−7a2+5a2)+(3+9)

=−14a3+−2a2+12

Answer:

=−14a3−2a2+12

3 0

3 years ago

Choose the best definition for the following phrase: combining like terms (1 point)

dalvyx [7]

It would be the 2nd object or letter B

7 0

3 years ago

Which statement(s) describe the graph of the equation x=-2? Select all that apply

Nana76 [90]

Answer:

B, D.

Explanation:

When graphed out it is a vertical line. A vertical line has an undefined slope.

The x intercepts the line at (-2,0).

4 0

3 years ago

3. An exclusive clothing boutique triples the price of the items it purchases

Juli2301 [7.4K]

Answer:

a) MARKUP PERCENT = 200%

b) If the cost price of clothing A = $10

then its retail price = $30

If the cost price of clothing B = $25

then its retail price = $75

Step-by-step explanation:

Let us assume the original price for the clothing = a

Now, boutique triples the price of the items it purchases for resale.

So, the resale value of the item of clothing = 3 times (Original price) = 3 a

So, here: The resale Value = 3 a

a) MARK UP Percentage = $(\frac{\textrm{SP - CP}}{CP}) \times 100$

$\implies \% = (\frac{3a-a}{a} ) \times 100 = 200 \%$

or, the MARKUP PERCENT = 200%

b) Two expressions that represent retail price

If the cost price of clothing A = $10

then its retail price = 200% of 10 + 10 = 20 + 10 = $30

If the cost price of clothing B = $25

then its retail price = 200% of 25 + 25 = 50 + 25 = $75

7 0

3 years ago

Need help with this problem​

Need help with this problem