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DaniilM [7]
3 years ago
15

Form an equivalent expression 5x + 9z -x

Mathematics
1 answer:
Liula [17]3 years ago
3 0
5x+9z-x
5x-x+9z
4x+9z

Equivalent expression is asking for you to simplify by adding like terms and eliminatino parenthesis. Use the PEMDAS.


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A school paid $31.25 for each calculator. If the school spent $500 on calculators, how many did the school buy?
Sedbober [7]

Answer:

A school paid $31.25 for each calculator.

If the school spent $500 on calculators, the number of purchased calculators:

N = 500/31.25 = 16

Hope this helps!

:)

5 0
3 years ago
Read 2 more answers
Find the perimeter of ABC with vertices A (1,1), B (7,1), and C (1,9)
Effectus [21]

Answer:

24 unit

Step-by-step explanation:

Given,

The vertices of the triangle ABC are,

A (1,1), B (7,1), and C (1,9),

By the distance formula,

AB=\sqrt{(7-1)^2+(1-1)^2}=\sqrt{6^2}=6\text{ unit}

BC=\sqrt{(1-7)^2+(9-1)^2}=\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10\text{ unit}

CA=\sqrt{(1-1)^2+(1-9)^2}=\sqrt{8^2}=8\text{ unit}

Thus, the perimeter of the triangle ABC = AB + BC + CA = 6 + 10 + 8 = 24 unit

4 0
3 years ago
Help 4th grade math
Ymorist [56]
(32 + 18 + 13) / 3 = b

/ is divided by

you would add the boxes together and then divide them equally into the 3 displays
5 0
3 years ago
Read 2 more answers
Graph the equation y=-1(x-3)^2+4
Elena L [17]

Answer:

Direction : Open Down

Vertex : (3,4)

Focus : (3,15/4)

Axis of Symmetry : x=3

Directrix : y=17/4

x : 1,2,3,4,5

y : 0,3,4,3,0

Step-by-step explanation: Graph the parabola using the direction, vertex, focus, and axis symmetry. Graph is included down below!

Hope this helps you out! ☺

3 0
3 years ago
What’s the answer to this?
jeka57 [31]

Answer:

y=3/2x+0

Step-by-step explanation:

The formula for slope intercept form formula is y=mx+b where m is the slope and b is the y intercept and since the slope is rise over run ( or rise/run just put it into fraction form) we count from the y intercept up until we can see the line reach a point where it touches a actual cross point ( in this case from the y intercept we see it goes up three) Then we count over how many to that cross point ( the full point, not just a random place on the chart) (in this case 2) and that creates 3/2. Now for the y intercept. Where does the line intercept the vertical line? That's your y intercept. In this case it's 0. Now you can see where we count up from three ( for the slope) and over two. Right onto that point. Hope this makes sense! If not look up Khan academy for some extra tutoring that is free.

Hope this helps! If so please mark brainliest and rate/heart if it did.

8 0
3 years ago
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