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serious [3.7K]
3 years ago
8

Please help I’ll mark brain thingy

Mathematics
2 answers:
Alex17521 [72]3 years ago
8 0

Answer:

60

Step-by-step explanation:

y = 8

8y - 4

8(8) - 4

  = 64 - 4

  = 60

adell [148]3 years ago
5 0

Answer: 60

Step-by-step explanation:

8y-4 and y = 8

Plug in 8

8(8) - 4

64 - 4

60

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Kayla works for 7 hours at $10.25 per hour. How much does he earn?
Sphinxa [80]

Answer:

$71.75

Step-by-step explanation:

10.25 · 7 = 71.75

8 0
4 years ago
Can someone please help me with this problem
DerKrebs [107]

For Erin, the graph shows 10 pounds of sugar are used for every 30 cups of tea.

For Lucia, we can let x=3 and we find 3 pounds of sugar are used for 10·3 = 30 cups of tea.

For the same number of cups of tea (30), Erin uses 10 pounds of sugar and Lucia uses 3 pounds of sugar.

Erin uses sugar at a higher rate.

6 0
3 years ago
Find the unknown digit to make each statement true
notsponge [240]
Whats the equation to the question

7 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH THIS ITS DUE TODAY
saveliy_v [14]

1.  4 x 31 is 124

2. 7 x 49 is 658

3. 16 x 48 is 608

4. 8(5 + w) is   8w + 40

5. 11(9 + d) is   11d + 99

6. 15(p + 4 + 2) is   15p + 90

7. Let's simplify step-by-step.

2x−4+3x

=2x+−4+3x

Combine Like Terms:

=2x+−4+3x

=(2x+3x)+(−4)

=5x+−4.

8. Let's simplify step-by-step.

4y−1−3y−2

=4y+−1+−3y+−2

Combine Like Terms:

=4y+−1+−3y+−2

=(4y+−3y)+(−1+−2)

=y+−3.

9. Let's simplify step-by-step.

x+2(x−4)

Distribute:

=x+(2)(x)+(2)(−4)

=x+2x+−8

Combine Like Terms:

=x+2x+−8

=(x+2x)+(−8)

=3x+−8.

10. Part A)

The jazz band sells 31 large boxes of fruit and 74 small boxes of fruit.

For each large fruit box, the price is $20 and cost is $x.

Profit is defined as Price - Cost.

So, profit for one large fruit box = 20 - x

Profit for 31 large fruit boxes = 31(20 - x)

Price of each small fruit box is $10 and cost of each small fruit box is $y. The profit for each small fruit box is 10 - y.

Profit for 74 small fruit boxes = 74(10 - y)

The total profit for 31 large boxes and 74 small boxes will be:

Total profit = 31 (20 - x ) + 74(10 - y)

Using distributive property, we can simplify the above equation as:

Total profit = 31(20) - 31x +74(10) - 74y

Total profit = 1360 - 31x - 74y

Part B)

Cost of each large box is given to be $9. This means x = 9

Cost of each small box is given to be $4. This means y = 4

Using the values of x and y in the profit equation we can find the profit of the Jazz Band.

So, Jazz Band's Profit = 1360 - 31(9) - 74(4)

Jazz Band's Profit = $ 785

Thus the profit of Jazz Band will be $785.

Have A good day!! Hope I helped!!! ^-^

6 0
3 years ago
Which of the following equations is used to find the value of c (the distance to the foci) for an ellipse? 
Reika [66]

The equation of ellipse:

\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2}=1

The formula of c (the distance to the foci)

c^2=a^2-b^2\qquad|\text{add}\ b^2\ \text{to the both sides}\\\\c^2+b^2=a^2

<h3>Answer: c² + b² = a²</h3>
4 0
3 years ago
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