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leva [86]
3 years ago
7

Which value of x makes the equation 0.75(x + 20) = 2 + 0.5(x − 2) true?

Mathematics
1 answer:
NISA [10]3 years ago
8 0

Answer:

I think there is a mistake somwhere . Please can someone else try it out

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For what values of a is the value of the binomial 2a−1 smaller than the value of the binomial 7−1.2a?
Hunter-Best [27]
To solve the problem shown bove you must apply the proccedure shown below:

 1. You have that:

 2a-1<<span>7−1.2a
 2a+1.2a<7+1
 3.2a<8
 a<8/3.2
 a<2.5

 2. Therefore, f</span><span>or what values of a is the value of the binomial 2a−1 smaller than the value of the binomial 7−1.2a?
</span><span>
 As you can see above, the answer for this question is:

 All the values of a between -</span>∞ and 2.5<span>
</span>
8 0
3 years ago
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What is the value of v? 45(v−7)=2 Enter your answer in the box.
netineya [11]
45(v - 7) = 2...divide both sides by 45
v - 7 = 2/45...add 7 to both sides
v = 2/45 + 7
v = 2/45 + 315/45
v = 317/45 or 7 2/45
4 0
3 years ago
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John buys two ties that each cost $19.99 he also buys a pair of dress pants that were originally $64 but a discounted by 30% mor
Tresset [83]

Answer:

Cost of ties and pants = $52.5

Step-by-step explanation:

Total cost of ties = $19.99

cost of dress pants = $64, discountted by 30%

discount on dress pants = 30% of 64 = 0.3 × 64 = $19.2

∴ Discounted price of dress pants = 64 - 19.2 = $44.8

Total cost of ties and dress pants = 19.99 + 44.8 = $64.79

Now, let us apply the coupon

coupon = $10 off every purchase of $50 or more

Purchase amount = $64.79 ;  therefore coupon applies.

Applying coupon

Purchase amount = 64.79 - 10 = $54.79

sale tax = 6% or purchase price

sale tax = 6% × 54.79

sale tax = 0.06 × 54.79 = $3.29

∴ Final cost of ties and dress pants = 54.79 - 3.29 = $52.5

7 0
3 years ago
Find the discount on a $15 T-shirt. It is on sale for 10% off.
Lelu [443]

Answer:

$13.50 (discount price)

$1.50 (discount amount)

Step-by-step explanation:

$15 x 10% =

$15 x 0.1 = $1.50

$15 - $1.50 = $13.50

3 0
3 years ago
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Simplify the expression using positive exponents: x^7/x^3
Nikolay [14]

Answer:

x power of 4

Step-by-step explanation:

Subtract 7 by 3

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