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Tema [17]
3 years ago
13

Name:

Mathematics
1 answer:
sesenic [268]3 years ago
6 0

Answer:

hi bro i love you

Step-by-step explanation:

send n*de

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PLEASE HELP ME!!!
Rzqust [24]
A. You are told that the length equals (x + 15), which means that you must factorise the area in order to find the width:
45 ÷ 15 = 3
(x + 15)(x + 3)
So the width is x + 3

b. Now you substitute in the value of x into both brackets, so
length: (x + 15) = (8 + 15) = 23 yards
width: (x + 3) = (8 + 3) = 11 yards

I hope this helps!
5 0
4 years ago
A company has budgeted $21,200 to buy TV ads. A TV ad costs $6,575 per
amm1812

Answer:

about 300

21200 rounded is 21000 and 6575 rounded is 7000

Step-by-step explanation:

21000÷7000=300

3 0
4 years ago
The product of 579 and 28 is closet to
Katarina [22]

Answer: 16, 212

Step-by-step explanation:

Product means multiplication

Therefore, multiply 579 by 28 by punching the two numbers into a calculator:

579 x 28 = 16,212

I hope this answers your question.

3 0
3 years ago
Ju-yi just got back from A 10 mile bicycle ride and she had ridden three miles per hour faster. The ride would have taken her 30
Gnom [1K]

Answer:

6.39\ miles/hr

Step-by-step explanation:

Let\ her\ speed=x\ mile/hr\\\\Let\ time\ taken=t\ hr\\\\distance=speed\times time\\\\10=x\times t\ .........................(1)

When speed is 3 mi/hr faster.

Her\ speed=x+3\ mile/hr\\\\Time\ taken=t-\frac{1}{2}\ hr\ \ \ as\ it\ takes 30\ minutes\ fewer\ and\ 30\ min=\frac{1}{2}\ hr\\\\distance=speed\times time\\\\10=(x+3)\times (t-\frac{1}{2})\\\\10=xt+3t-\frac{x}{2}-\frac{3}{2}\......................eq(2)\\\\eq(2)-eq(1)\\\\10-10=xt+3t-\frac{x}{2}-\frac{3}{2}-xt\\\\3t=\frac{x}{2}+\frac{3}{2}\\\\t=\frac{x+3}{6}\\\\from\ equation\ 1\ t=\frac{10}{x}\\\\\frac{10}{x}=\frac{x+3}{6}\\\\60=x^2+3x\ \ \ \ \ \ \ \ \ cross\ multiplication\\\\x^2+3x-60=0

Solution\ of\ ax^2+bx+c=0\ is\ given\ by\ x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\Here\ a=1,b=3\ and c=-60\\\\x=\frac{-3\pm\sqrt{3^2-4\times 1\times (-60)}}{2}\\\\x=\frac{-3\pm\sqrt{9+240}}{2}\\\\Only\ positive\ value\ will\  be\ taken\\\\x=\frac{-3+\sqrt{9+240}}{2}=6.39\ miles/hr

7 0
3 years ago
Which expression is equivalent to (-2)(a+6)
Eva8 [605]
The equivalent answer to this expression is found by using the distributive property.
(-2a - 12)
Simply multiply the negative 2 into the second parenthesis.
3 0
3 years ago
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