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kvasek [131]
2 years ago
6

Describe how to use a tens fact to find the difference for 15-8.

Mathematics
1 answer:
lbvjy [14]2 years ago
3 0
I cha use a 10 fact because I can round to the nearest 10 which is 20 for 15 and 10 for 8
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Which inequality is represented by the graph ??pls help:)?
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Answer:

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4 0
3 years ago
Lauren coordinates a construction projects for a cement company. A government project requires constructing two rectangular conc
I am Lyosha [343]

Answer:

7

Step-by-step explanation:

Total concrete for slabs

24 * 24 * 1 = 576 ft³

Additional 20 %

By rule of three      

if     576       ⇒    100

        x??      ⇒     20           x = 115,2

And there are 2 slabs, the total volume of concrete is:

Q(t)  = 2* (576 + 115,2 )      Q(t)  =  1382,4 ft³   (1)

If the truck can carry a maximum of 8 yd³, as 1 ft³  = 0,037 yd³

then a truck can carry a maximum of

8/ 0,037   =  216,21 ft³

Now the total quantity is 1382,4

Then  

1382,4/216,21        =  6,39

And as nobody can send a fraction of a truck , the fewest number of truck is 7

5 0
3 years ago
Josh works as a tutor for $9 an hour and as a waiter for $8 dollars an hour. This month, he worked a combined total of 101 hours
katovenus [111]
<h3>Answer:   9t+8(101-t)</h3>

Work Shown:

t = number of hours tutoring

101-t = number of hours working as a waiter

The expressions t and 101-t add to 101.

9t = amount earned as a tutor, at $9 an hour

8(101-t) = amount earned as a waiter, at $8 an hour

9t+8(101-t) = total amount earned from both jobs

This does not account for taxes or other fees. Optionally, you can distribute the 8 through the (101-t) terms, then combine like terms to simplify.

6 0
2 years ago
mary says then pen for her horse is a acute right angle. is this possible? explain clearly and explain everthing
Goryan [66]
The acute right angle means, the right angle is an acute angle so therefor it is not possible, because it is an acute angle not a right angle. Hope this helps :)
3 0
3 years ago
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