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TiliK225 [7]
3 years ago
11

eight times the result of subtracting 3 from a number is equal to the number increased by 25 what is the number

Mathematics
2 answers:
Grace [21]3 years ago
6 0

Answer: 7


Step-by-step explanation:

Given: Eight times the result of subtracting 3 from a number is equal to the number increased by 25 what is the number.

Let x be the number.

According to the question, we have

8(x-3)=x+25

⇒8x-24=x+25  [open parenthesis]

⇒8x-24-x=25  [Subtract x from both sides ]

⇒7x-24=25

⇒7x=49  [Add 24 to both sides ]

⇒x=7  [divide both sides by 7 ]

Therefore, the number is 7.

polet [3.4K]3 years ago
5 0
Answer=7

Lets write the an equation for the information given
8(x-3)=x+25
subtract x from both sides
8(x-3)-x=25
8x-24-x=25
7x-24=25
add 24 to both sides
7x=49
divide both sides by 7
x=7



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The total points earned in the football game was 42. The Falcons earned 2/3 of that score. How many points did the other team sc
Elodia [21]

Step-by-step explanation:

other team earned 1/3,

42/1 * 2/3 = 84/3

so 84/3 is 28

then the Falcons = 28

so other team = total score - the Falcons

which is 42 - 28 = 14

4 0
3 years ago
Is the center of dilation colinear with the hypotenuses of the right triangles shown?
Novay_Z [31]

Answer:

the answer is b

Step-by-step explanation:

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7 0
3 years ago
What are the four points of intersection between 4x^2 + y^2 - 4y - 32 = 0 and x^2 - y - 7 = 0 ? Solve algebraically
tensa zangetsu [6.8K]
Remember (a²-b²)=(a-b)(a+b)

solve for  a single variable
solve for y in 2nd

add y to both sides
x²-7=y
sub (x²-7) for y in other equaiton

4x²+(x²-7)²-4(x²-7)-32=0
expand
4x²+x⁴-14x²+49-4x²+28-32=0
x⁴-14x²+45=0
factor
(x²-9)(x²-5)=0
(x-3)(x+3)(x-√5)(x+√5)=0
set each to zero

x-3=0
x=3

x+3=0
x=-3

x-√5=0
x=√5

x+√5=0
x=-√5


sub back to find y

(x²-7)=y

for x=3
9-7=2
(3,2)

for x=-3
9-7=2
(-3,2)

for √5
5-7=-2
(√5,-2)

for -√5
5-7=-2
(-√5,-2)


the intersection points are

(3,2)
(-3,2)
(√5,-2)
(-√5,-2)
8 0
3 years ago
Lester's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 80 espressos in all,
bogdanovich [222]

Answer:

64 single-shot espressos

Step-by-step explanation:

Let's say that the cafe sold x single-shot espressos. The total number of espressos sold was 80, and 80% of that total 80 were single-shot. So, we have the equation:

x = 80% * 80

Remember that % just means "out of 100". So, 80% = 80/100:

x = (80/100) * 80 = 6400/100 = 64 single-shot espressos

Hope this helps!

7 0
3 years ago
Read 2 more answers
I need help for these two<br> Im3
frez [133]
For number one you do 15-9 which is 6 and that’s the answer

For number to do 25-18 which is 7 and that’s the answer for that one
6 0
2 years ago
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