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IgorLugansk [536]
3 years ago
9

Simplify by combining like terms.1. 5a-a​

Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0
5a-a=4a you subtract five from one and get four a
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-4(4x-4) + 2x - 4 = -30
s344n2d4d5 [400]

Answer:

x=3

Step-by-step explanation:

-4(4x-4)+2x-4+4=-30+4

-4(4x-4)+2x=-26

-14x+16=-26

-14x+16-16=-26-16

-14x=-42

-14x/-14=-42/-14

x=3

5 0
3 years ago
Eva is at a sushi restaurant. She ordered 2 pieces of squid for a total of $3.50, 1 piece of eel for $3.25, 3 pieces of tuna for
mixas84 [53]

Answer:

squid, crab, tuna, eel

Step-by-step explanation:

Just make each sushi piece into an equation, then solve it.

For example, for the squid: (s stands for squid)

2s = 3.5\\ s=1.75      Divide both sides by 2 to get "s" by itself

Eel: (e stands for eel)

e = 3.25

Tuna: (t stands for tuna)

3t=6.75\\ t=2.25   Divide both sides by 3 to get "t" by itself

Crab: (c stands for crab)

4c=8\\ c=2       Divide both sides by 4 to get "c" by itself

**Then order from least to greatest**

6 0
3 years ago
Read 2 more answers
Fernanda and Jose were working on an assignment in their geometry class in which they were to write the equation of the graph be
Alborosie

Answer:

yes they both are wrong

Step-by-step explanation:

Center of the Circle is (h,I) which is (4,-3)

so h= 4 and k = -3

radius is 4 units (3+1)

Equation for circle

(x - h) {}^{2}  + (y - k) {}^{2}  = r {}^{2}

substitute all the values in this equation

(x  - 4) { }^{2}  + (y - ( - 3)) {}^{2}  = 4 {}^{2}  \\ (x - 4) {}^{2}  + (y + 3) {}^{2}  = 16

4 0
2 years ago
A rectangle has an area of 524.4m2. One of the sides is 6.9m in length. Work out the perimeter of the rectangle. PLEASE ANSWER!!
malfutka [58]

Answer:

<h2>165.8 m</h2>

Solution,

Area of rectangle= 524.4 m^2

Length(L)= 6.9 m

Breadth(B)=?

Now,

area = length  \times breadth \\ or \: 524.4 = 6.9 \times b \\ or \: 524.4 = 6.9b \\ or \: b =  \frac{524.4}{6.9}  \\ b = 76 \: m

Again,

Perimeter of rectangle:

2(l + b) \\  = 2(6.9 + 76) \\  = 2 \times 82.9 \\  = 165.8 \: m

Hope this helps...

Good luck on your assignment.....

6 0
3 years ago
Read 2 more answers
PLEEEEEASEEE HEEEELP
Nonamiya [84]

Step-by-step explanation:

x+40=60°{ vertically opposite angle r equal}

  • x=60-40
  • x=20°

hope it helps.

stay safe healthy and happy.

3 0
3 years ago
Read 2 more answers
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