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3 years ago

7

Teacher-Led Station

2 answers:

____ [38]3 years ago

8 0

Answer:

no n 16

Step-by-step explanation:

cost for 3 pencils, a hat, and 2 binders

= 3*0.3+14.5+2*3.2

= $21.8 > $20

so estimate not good

5/0.3=16.6....

so she can buy 16 pencils

Helen [10]3 years ago

5 0

Answer:

Step-by-step explanation:

Yes, her estimate is not good because one hat is $14.50 and 2 binders are$3.20*2=^$6.40. Those two items combined is over $20. The pencils will put the total further over $20.

Pencils are $0.30 each. So 10 pencils will cost $3.

$5 - $3 = $2

The remaining $2 is enough for 6 more pencils.

So she could buy 10+6 = 16 pencils with $5.

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12/-4 =<br> pls help i don’t understand

Sveta_85 [38]

$\text {Hello! Let's Solve this equation!}$

$\text {Since there is a negative in the problem this tells us that the answer we get will be a negative.}$

$\text {Here are some tips on dividing/multiplying equations like this.}$

$\text {Multiplying/Dividing a Positive to a Positive will equal a Positive}\\\text {Multiplying/Dividing a Positive to a Negative will equal a Negative}\\\text {Multiply/Dividing a Negative to a Negative will equal a Positive}\\\text {Multiplying/Dividing a Negative to a Positive will equal a Negative}$

$\text {Now Divide!}$

$\text {12/-4=}$

$\fbox {-3}$

$\text {As you can see 4 is a negative number so our result came out as a negative number.}$

$\text {Want to see if your answer is correct? Sure! Do the opposite of Dividing and Multiply!}$

$\text {-3*-4=12}$

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6 0

3 years ago

Solve for x.<br> 3(15 - x) = 2x

Morgarella [4.7K]

Answer:

well

Step-by-step explanation:

3 times 15 is 45

then 3 times negative x is -3x

so 45 - 3x = 2x

3 x moved to the other side turns positive

so you have

5x = 45

45÷5

x = 9

8 0

3 years ago

ASAP answer please!!!!!!!!!!!

antoniya [11.8K]

<h2>angle in triangle</h2>

because the triangle above is an isosceles triangle, then both angles are of the same value.

and one thing you should know, the angle above shows the straight angle.

<em>so the sum of all angles is 180</em><em>°</em>

<u>can be written like </u><u>this</u><u> </u><u>:</u>

(5x+13)°+(3x+7)°=180°

5x + 13 + 3x + 7 = 180

8x + 20 = 180

8x = 180 - 20

8x = 160

x = 20

<em>(*the third choice is correct)</em>

3 0

4 years ago

Read 2 more answers

a delivery truck is carrying and 8713 lb load of pet food. At a weighing station, the loaded truck weighs 17200 lb. What is the

netineya [11]

We know that the load is 8713 lbs.

The total weight (truck + load) is 17200 lb.

Then, we can calculate the weight of the empty truck as:

$\begin{gathered} L=8713 \\ W=L+T=17200 \\ \Rightarrow T=W-L \\ T=17200-L=17200-8713=8487 \\ \end{gathered}$

Answer: the empty truck's weight is 8487 lb.

T: empty truck's weight

W: total weight (loaded truck's weight)

L: Load

The equation is:

T = W - L

6 0

1 year ago

Pls help i give brainliest

Sedaia [141]

Answer:

53

Step-by-step explanation:

Take the mean of each row in the accidents reported column so for example 0-4 would be 0+4/2 = 2

Then times it by the frequency which in this case is 15:

2 x 15 = 30

Do this for each rows and then add it all up:

30 + 28 + 120 + 34 = 212

Then divide it by number of row which in this case is 4:

212/4 = 53

8 0

3 years ago

Read 2 more answers