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zzz [600]
3 years ago
14

Which expressions are equal to 915? a) 915 x 5/3 b) 915 x 100/100 c) 915 x 10/100

Mathematics
2 answers:
Ksivusya [100]3 years ago
6 0

Answer:

b

Step-by-step explanation:

tresset_1 [31]3 years ago
3 0
915x100/100=
915/1×100/100=
91500/100=915
so B is the answer

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Is (3, 2) a solution of -8x-2y&lt;6?<br> Choose 1 answer:
Allisa [31]

Answer:

Yes

Step-by-step explanation:

-8x-2y<6 (I prefer to convert this into standard form y=mx+b)

-8x+8x-2y<8x+6

-2y/-2>8x+6/-2

y > -4x -3

2 > -4(3) - 3

2 > -12 - 3

2 > -15 True or Yes

3 0
3 years ago
1. How do you know whether an equation is linear or not?<br> Pls help!
lozanna [386]

Answer:

An equation is linear if its graph forms a straight line. This will happen when the highest power of x is 1. Graphically, if the equation gives you a straight line then it is a linear equation. Else if it gives you a circle, or parabola, or any other conic for that matter it is a quadratic or nonlinear equation.

4 0
3 years ago
Read 2 more answers
Georgia gives 12 cookies to her friends. If that represents 15% of the cookies in the package, what is the total number of cooki
harina [27]
12/15% = 80

80x15% = 12
7 0
3 years ago
Stephanie just redecorated her bedroom. She wants to paint but needa to know the surface area of the door to see if she has enou
zhuklara [117]

Answer:

The surface area of door is 33 680 cm².

Step-by-step explanation:

Given that the surface area of a cuboid which is the 3D of rectangle is :

s.a = 2(l \times w) + 2(l \times h) + 2(w \times h)

let \: l = 80 \\ let \: w = 3 \\ let \: h = 200

s.a = 2(80 \times 3) + 2(80 \times 200) + 2(3 \times 200)

s.a = 2(240) + 2(16000) + 2(600)

s.a = 480 + 32000 + 1200

s.a = 33680 \:  {cm}^{2}

8 0
3 years ago
The perimeter of a rectangle is found by using the formula P = 2l + 2w, where P is the perimeter, l is the length and w is the w
velikii [3]

Answer:

#1: 11 cm

#2: 16.5 in

#3: 2.5 feet

Step-by-step explanation:

#1

P=2l+2w Solve for width by substracting 2l on both sides to isolate 2w

P-2l=2w

or

2w=P-2l

Replace.

2w=26-2(2)\\2w=26-4\\2w=22\\w=\frac{22}{2}\\ w=11cm

----------------------------------------------------------------------------

#2

P=2l+2w

P=2(3.5)+2(4.75)\\P =7+9.5\\P=16.5in

----------------------------------------------------------------------------

#3

P=2l+2w

Solve for l

2l=P-2w\\2l=7-2(1)\\2l=7-2\\2l=5\\l=\frac{5}{2}\\ l=2.5feet

5 0
4 years ago
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