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serg [7]
3 years ago
11

What is the value of the expression below when y=9 and z=3? 10y−7z

Mathematics
2 answers:
tiny-mole [99]3 years ago
6 0

10y−7z

Plug in the numbers for y and z.

(10)(9)−(7)(3)

= 69

aev [14]3 years ago
5 0

Answer:

69

Step-by-step explanation:

10y-7z

<u>Plug in y and z</u>

10(9)-7(3)

<u>Solve using order of operations</u>

90-21=69

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Plz help due tomorrow
Lostsunrise [7]

Answer:

6(10)+5x=180

Step-by-step explanation:

The grocery store received a crate of 180 pound...

So, the whole amount is 180..

The crate contains six 10 pound bag of potato plus an unknown number of 5pound bag of potato....

So if we think, that the unknown number is x the equation would be

6(10)+5x=180

Hope ya find this helpful..

6 0
3 years ago
What is the equation of the line that has a slope of 4 and passes through the point (3,-10)?
77julia77 [94]

Answer:

Step-by-step explanation:

it’s ask a freind

6 0
3 years ago
What are the solution(s) to the quadratic equation 40 − x2 = 0?
ohaa [14]
40-x^2=0\ \ \ |add\ x^2\ to\ both\ sides\\\\x^2=40\iff x=\pm\sqrt{40}\\\\x=-\sqrt{4\cdot10}\ or\ x=\sqrt{4\cdot10}\\\\x=-\sqrt4\cdot\sqrt{10}\ or\ x=\sqrt4\cdot\sqrt{10}\\\\\boxed{x=-2\sqrt{10}\ or\ x=2\sqrt{10}}
8 0
3 years ago
Read 2 more answers
Given that ∠A≅∠B , Evelia conjectured that ∠A and ∠B are acute angles. Which statement is a counterexample to Evelia's conjectur
Ilia_Sergeevich [38]

Answer:

B

Step-by-step explanation:

Given that ∠A ≅ ∠B, Evelia conjectured that ∠A and ∠B are acute angles.

Consider all options:

A. If m∠A=114° and m∠B=170°, then angles A and B are not congruent, so this is not a counterexample.

B. If m∠A=126° and m∠B=126°, then angles A and B are congruent and both these angles are obtuse (their measures are greater than 90°). This means that two obtuse angles can be congruent, so this is a counterexample. True option.

C.  If m∠A=30° and m∠B=40°, then angles A and B are not congruent, so this is not a counterexample.

D. If m∠A=45° and m∠B=45°, then angles A and B are congruent, so this examples show two congruent acute angles. But if we have to prove some statement, we have to prove this statement for an arbitrary angles, not for one pair of angles. Moreover, this is an example illustrating given statement, but is not a counterexample.

5 0
3 years ago
Question 1 A=lw for l=6, w=12 A=?<br><br><br> question 2 d=rt for r=25, t=11 D=?
galben [10]

Answer:

Question 1: Area=72 units

Question 2: D=275 units

Step-by-step explanation:

For question 1, you multiply the length, which is 6, by the width, which is 12 and you get 72 as your area. For question 2, you multiply 25 by 11 to get D.

4 0
3 years ago
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