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Serggg [28]
2 years ago
8

What's the answer?x + 7 + 2 × x + 3 = 40​

Mathematics
1 answer:
Phantasy [73]2 years ago
5 0

Answer:

x=10

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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HWELP ASAP!
exis [7]
You need to find 8.45% of each phone:
A) 0.0845·20=1.69
B) 0.0845·25=2.11
C) 0.0845·10=.85
D) 0.0845·18=1.52
Phone B is 2.11 so your answer is B :)
3 0
3 years ago
Math help again please
vovangra [49]
Hey there! :D

First, find the slope. 

m= (y2-y1)/(x2-x1) I'm using points (0,3) and (1,5)

m=(5-3)/(1-0)
m= 2/1
m=2

Now, plug that into point slope. Use point (1,5) m=2

y-y1= m(x-x1)

y-5= 2(x-1)

Distribute. 

y-5=2x-2

Add 5 to both sides.

y=2x+3 == equation of the line in slope intercept form. y=mx+b

I hope this helps!
~kaikers


8 0
3 years ago
Alia and Huda share some sweets in the ratio 7:3. Alia gives 3 sweets to Huda and
Nuetrik [128]

Answer:

Alia=28

Huda=12

Step-by-step explanation:

Let the constant of proportionality be x

Hence, no. of sweets Alia had initially = 7x

No. of sweets Huda had initially = 3x

No. of sweets Alia has now= 7x-3

No. of sweets Huda has now= 3x+3

We know that, the ratio of the no. of sweets Alia has now to no. of sweets Huda has now = 5:3

Hence,

(7x-3) : (3x+3)=5:3\\By\ equalizing\ the\ ratios,\ we\ get,\\ 3(7x-3)=5(3x+3)\\21x-9=15x+15\\21x-15x=15+9\\6x=24\\x=4

As we now got the constant of proportionality to be 4,

No. of sweets Alia had initially = 7*4=28

No. of sweets Huda had initially= 3*4=12

5 0
2 years ago
Read 2 more answers
2 3/8 as a mixed number​
Nikolay [14]

Answer:

19/18

Step-by-step explanation:

The mixed number 2 3/8 can be changed into the improper fraction 19/8.

5 0
3 years ago
How much money will it cost you to drive 185 miles if your car gets 25.70 miles per gallon and gas costs $3.309/gallon?
IrinaVladis [17]

Answer:  $26.47

Explanation:

Divide the distance by the mpg rating to figure out how many gallons of gas you'll use up.

185/(25.70) = 7.1984 approximately

Let's round that up to the nearest whole gallon.

7.1984 gallons rounds up to 8 gallons.

Multiply that 8 gallons by the price per gallon.

3.309*8 = 26.472

That rounds to 26.47

6 0
2 years ago
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