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Artist 52 [7]
3 years ago
11

The answer to 5a-2=23

Mathematics
2 answers:
Sindrei [870]3 years ago
7 0

Answer:

a = 5  

Step-by-step explanation:

assuming you are trying to find the value for a,

5a-2 = 23  (add 2 to both sides)

5a = 23 + 2

5a = 25   (divide both sides by 5)

a = 25/5

a = 5

Hope this helps  

kow [346]3 years ago
6 0

Answer:

a=5

Step-by-step explanation:

To solve, we need to isolate the variable, a

5a-2=23

Add 2 to both sides

5a=25

Divide both sides by 5

a=5

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Solve 2 ÷ x =5
Volgvan
So to help with the first one
2 / x = 5
multiply the x on both sides
2 = 5x
divide by 5 to isolate the x
2/5 = x

For the second one
We will use the diamond to help us find the common factor 
  \   1  /
   \    / 
    \  / 
 2 /  \   4
   / 3 \
  /      \

1) the product
2) and 4) the two numbers
and 3) is sum

10 is the product and -7 is the sum
so what two numbers (factors of 10)
will equal -7 when added

so we have these numbers that will equal the product of +10 and we will need to find the ones that will equal -7 as the sum
10*1, 2*5, -1*-10, -2*-5
if we add the two numbers we will find respectively
11, 7, -11, -7
As you can see that -2 + -5 = +10 and -2+-5= +10
So we have found the two numbers
now before we factor the expression looks like 
( x + a) (x + b)
and when factored looks like
x^2 + (a+b)x + (a*b)
Now we can plug in the numbers and solve to see if -2 and -5 are right
(x + -2) (x + -5)
we will factor it
x^2 +-5x + -2x + 10
x^2 + -7x + 10
so a = -2 and b = -5

Hope this helps :)
5 0
3 years ago
Gilda walks to the train station. If she walks at the rate of 3 mph, she misses her train by 7 minutes. However, if she walks at
Salsk061 [2.6K]
We'll represent the distance as d and the time as t. 
d= 3(t+7)            because Gilda is 7 minutes late when travelling 3 mph
d= 4(t-5)             because Gilda is 5 minutes early at 4 mph

d= 3t + 21
d= 4t -20
3t +21 =4t -20
41=t
d= 3(41) +21= 144
The distance is 144 miles. 
3 0
3 years ago
Read 2 more answers
(x^5 - 8x^3 + 24x^2 + 12x + 40) / (x + 4) how do you do this using synthetic division
Rudik [331]
Add all the x up and then you add all the ones that doesn't have an x then divide those 2 together.
×=46
54
8 0
3 years ago
The Harper family is traveling to visit friends. The distance to the friend’s house is 276.45 miles. It takes the family 5.82 ho
Leona [35]

Answer:

270.63

Step-by-step explanation:

hope you get it right

8 0
2 years ago
Read 2 more answers
M+(-9.5)=-7.8 how do you do this problem
krok68 [10]
M + (-9.5) = -7.8

First, simplify your brackets. / Your problem should look like: m + -9.5 = -7.8
Second, change addition to subtraction. / Your problem should look like: m - 9.5 = -7.8
Third, add 9.5 to both sides. / Your problem should look like: m = -7.8 + 9.5
Fourth, simplify. / Your problem should look like: m = 1.7

Answer: m = 1.7

3 0
3 years ago
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