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mote1985 [20]
3 years ago
15

Question 1(Multiple Choice Worth 4 points)

Mathematics
2 answers:
m_a_m_a [10]3 years ago
6 0

1) 5
2) zero
3) <span>Step 1: 12x + 15 = 12
    Step 2: 12x = −3
4) 10
5) 2

This took me a long time to do so I hope this was beneficial :)) !! (btw I am absolutely sure about every answer. I checked my work plenty of times :)</span>
kramer3 years ago
4 0

Answer:

Step-by-step explanation:

(A) The given equation is:

2c+5(c-5)=10

Upon solving the above equation, we get

2c+5c-25=10

7c=35

c=5

Thus, the value of c is 5 and the option (C) is correct.

(B) The given expression is:

4x-8-4x=9

Upon solving the above equation, we get

-8=9

which is not possible, therefore there are zero solution of the given equation.

Hence, option (A) is correct.

(C) The given equation is:

3(4x+5)=12

Upon solving the above equation, we get

Step 1. 12x+15=12

Step 2 12x=-3

Thus, option A is correct.

(D) The given equation is:

3y-8=22

Upon solving the above equation, we get

⇒3y=30

⇒y=10

Hence, option (C) is correct.

(E) The given equation is:

⇒2(3y-6)=0

⇒6y-12=0

⇒6y=12

⇒y=2

Hence, option C is correct.

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1000

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3 years ago
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If Colorado Springs, Colorado, has 1.4 times more days of sunshine than Boston, Massachusetts, how many days of sunshine does ea
Rom4ik [11]
Days in boston=x
days in colorado=1.4x
boston+colorado=2.4x
475=2.4x
475/2.4=2.4x/2.4
198=x
198*1.4=277
days in boston=198
days in colorado=277
198+277=475


5 0
3 years ago
Is this right and plz help
FrozenT [24]
Number 6 and 7 are incorrect and I can't read 1/2/3

for 6
7/10 would be 70%
for 7
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8 0
3 years ago
Find the value of the expression 0.5^10/0.5^7
SIZIF [17.4K]

Answer:

The solution is:

  • \frac{0.5^{10}}{0.5^7}=0.125

Step-by-step explanation:

Given the expression

0.5^{10}\div 0.5^7

Solving

\frac{0.5^{10}}{0.5^7}

\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}

so

\frac{0.5^{10}}{0.5^7}=0.5^{10-7}

\mathrm{Subtract\:the\:numbers:}\:10-7=3

=0.5^3

=0.125        ∵ 0.5^3=0.125

Therefore, the solution is:

\frac{0.5^{10}}{0.5^7}=0.125

7 0
3 years ago
What two numbers have a sum of 215 and a difference of 137
BabaBlast [244]

Answer:

see below

Step-by-step explanation:

let x = big number

let you = small number

x + y = 215-------> (1)

x - y = 137 ------>(2)

(1)

x = 215 - y ----->(1)

substitute 1 into 2

215 - y -y = 137

-2 y = 78

y = 39

substitute y = 39 into (1)

x = 215 - (39)

x = 176

thus the numbers are 176 & 39

hope this helps

please mark it brainliest

it took me quite long to do this

3 0
3 years ago
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