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spin [16.1K]
3 years ago
5

Combine like terms in the expression 7a-4b+5b-a

Mathematics
1 answer:
Leviafan [203]3 years ago
6 0

Answer:

6a+b

Step-by-step explanation:

pls mark me brainliest

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Mark and Julio are selling flower bulbs for a school fundraiser. Customers can buy bags of windflower bulbs and packages of croc
ikadub [295]

Answer:

Bag of windflower bulbs costs $8.50

Package of crocus bulbs costs $17.60

Step-by-step explanation:

Let $x be the price of one bag of windflower bulbs and $y be the price of one  package of crocus bulbs.

1. Mark sold 2 bags of windflower bulbs for $2x and 5 packages of crocus bulbs for $5y. In total he earned $(2x+5y) that is $105. So,

2x+5y=105

2. Julio sold 9 bags of windflower bulbs for $9x and 5 packages of crocus bulbs for $5y. In total he earned $(9x+5y) that is $164.50. So,

9x+5y=164.50

3. You get the system of two equations:

\left\{\begin{array}{l}2x+5y=105\\ \\9x+5y=164.50\end{array}\right.

From the first equation

5y=105-2x

Substitute it into the second equation:

9x+105-2x=164.50

7x=164.50-105

7x=59.5

x=$8.50

So,

5y=105-2·8.5

5y=105-17

5y=88

y=$17.60

5 0
4 years ago
Personal math trainer module 9
Vladimir79 [104]

Answer:

what the question and i may be able to help you

Step-by-step explanation:

7 0
3 years ago
Plz help when you see this
kolezko [41]

Answer:

126

Step-by-step explanation:

angle ZWY = 180 - 90 - 63 = 27

Base on the given information, the length of XW is same with the length of ZW, which means they have the same angle.

Quadrangle has angle of 360

360(quadrangle) - 27(ZWY)- 27(XWY) - 90(WZY) - 90(WXY)

= 126

5 0
2 years ago
Someone could help me out to find the answer thanks​
Luden [163]

Answer:

  h(x) = 11/(x -4)

Step-by-step explanation:

The domain of m(x) is restricted to x≠1. That means the domain of m(n(x)) must be restricted so that n(x)≠1, or x≠4.

The only offered choice with a domain restriction x≠4 is the 3rd choice:

  h(x) = 11/(x -4)

4 0
3 years ago
How can you prove someone is lying? my sister and i both got in trouble, i know i didn’t do anything so how can i show she’s lyi
kramer

You can prove someone is lying by taking a video of it

OR

You can drop something and blame it on your sister

OR

You can hit your head on the wall when she enters the room and blame it on her. haha!

5 0
3 years ago
Read 2 more answers
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