Ask question

Ask question

All categories

2 years ago

7

A 6th grade math teacher can grade 15 homework assignments in 24 minutes. If he works at the same rate, how long should it take

him to grade 36 homework assignments?[type your answer as a decimal number]

1 answer:

coldgirl [10]2 years ago

4 0

Answer:

57.6

Step-by-step explanation:

If hê works 15 grades in 24 min how long hê will take to finish 36 grades

15 grades= 24 min

36 grades=?

Cress cross

15grades?=24min x 36grades

15 grades?=864 min grades

15grades/15grades?=864mingrades/15grades

?=57.6 min

You might be interested in

What number would you add to both sides of x2 + 7x = 4 to complete the square?

Nata [24]

Answer:

12.5

Step-by-step explanation:

(7/2) = 3.5

(3.5)^2 = 12.5

8 0

3 years ago

Order these numbers from least to greatest:<br> |-17|<br> |-18|<br> -18<br> |19|<br> 20

victus00 [196]

Answer:

-18, |-17|, |-18|, |19|, 20

Step-by-step explanation:

the absolute value of -17 is 17, the absolute value of -18 is 18, and the absolute value of 19 is just 19. Absolute values are never negative.

Hope this helps!

5 0

3 years ago

M_6 is (2x - 5)º and m_8 is (x + 5)º.<br> What is m 3?

oksano4ka [1.4K]

m_3 is (7x-4)°

Step-by-step explanation:

which is that m_3 is(7x -4)°.

3 0

3 years ago

Nuts Galore sells a trail mix containing dried banana chips, roasted almonds, and chocolate chips that sells for $6.52 per pound

KengaRu [80]

Answer:

$x = 28$ ----- Banana

$y = 54$ ----- Almonds

$z = 18$ ---- Chocolate

Step-by-step explanation:

Let

$x \to$ banana

$y \to$ almonds

$z \to$ chocolate

So, we have:

$x + y + z = 100$ --- total used

$4x + 8y + 6z = 652$ -- i.e. 6.52 * 100 --- total sales from 100 pounds

$y = 3z$

Required

The number of pounds of each (i.e. x, y and z)

Substitute $y = 3z$ in $x + y + z = 100$

$x + 3z + z = 100$

$x + 4z = 100$

Make x the subject

$x = 100 - 4z$

Substitute $y = 3z$ in $4x + 8y + 6z = 652$

$4x + 8 * 3z + 6z = 652$

$4x + 24z + 6z = 652$

$4x + 30z = 652$

Substitute $x = 100 - 4z$

$4(100 - 4z) + 30z = 652$

$400 - 16z + 30z = 652$

Collect like terms

$- 16z + 30z = 652-400$

$14z = 252$

Divide by 14

$z = 18$

Substitute $z = 18$ in $x = 100 - 4z$

$x = 100 - 4 * 18$

$x = 100 - 72$

$x = 28$

To calculate y, we have:

$y = 3z$

$y = 3 * 18$

$y = 54$

6 0

2 years ago

Zack needs to divide these base-ten blocks into 3 equal groups.

Vinil7 [7]

Can you show a picture so we can see? It asks for a model.

5 0

2 years ago