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3 years ago

How you solve 18= 4+2n

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

3 0

18 = 4 + 2n
18 - 4 = 2n
14 = 2n
n = 14/2
n = 7

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2) ONE 200 - Gram bag of rice cost $8.12. How much does 1 kilogram of rice cost? (Note that 1000g = 1kg.)

NARA [144]

1000 gram = 1 kilogram
If 200 gram = $8.12. 1, it means we can get 5 bags of such amount (1000/200 = 5)
Therefore, 1kg = $8.12 * 5 = $40.6

8 0

3 years ago

What is the place value of 1 in 5,678.321

alukav5142 [94]

<span>The place value of 1 in 5,678.321 is one-one thousands. The one digit is the third place behind the decimal point. The first place behind the decimal point is three one-tenths. The second place behind the decimal is two one-hundredths. A decimal number is a division of one. In other words, it will take a thousand one-one thousands to equal one.</span>

6 0

4 years ago

Select the correct answer

Tomtit [17]

Answer:

Step-by-step explanation:

The area for a triangle is

$A=\frac{1}{2}bh$

Our base is given as x, the height is given as 1 more than 6 times the base which looks like this: 6x + 1. We know that the area is 13, so filling in everything:

$13=\frac{1}{2} (6x+1)(x)$

We can get rid of the denominator of 2 by multiplying it on both sides to get:

$26=(6x+1)(x)$ and simplifying a bit:

$26=6x^2+x$

Now we can move over the 26 and put the expression into standard quadratic form by setting it equal to 0:

$6x^2+x-26=0$ which is choice C

3 0

2 years ago

What best describes parallel lines a never meet by hey intersect at one point c they forming acute angle d they from one obtuse

avanturin [10]

Parallel lines never meet or intersect.

3 0

4 years ago

Read 2 more answers

Tanya has several bills in her wallet. She has a total of $40. If she has one more $5 bill than $10 bills, and two more $1 bills

mars1129 [50]

Answer:

no. of $10 bill =2

no. of $5 bill = 3

no. of $1 bill = 5

Step-by-step explanation:

Let the no. of $10 bill be x

Total value of $10 bill = $10*no. of $10 bill = $10x

Given that

Tanya has one more $5 bill than $10 bills

Thus, no. of $5 bill = x+1

Total value of $5 bill = $5*no. of $5 bill = $5(x+1)

Also Given

she has two more $1 bills than $5 bills

no. of $1 bill = no. of $2 bill + 2 = x+1+2 = x+3

Total value of $2 bill = $2*no. of $2 bill = $1(x+3).

Therefore, total value of all the bill sin terms of x

= 10x + 5(x+1) + 1(x+3)

Given that she has total of $40,

then

10x + 5(x+1) + 1(x+3) = 40

10x + 5x+5 + x+3 = 40

=> 16x + 8 = 40

=> 16x= 40-8=32

=> x = 32/16= 2

Thus,

no. of $10 bill = x = 2

no. of $5 bill = x+1 = 2+1= 3

no. of $1 bill = x+3 = 2+3=5

8 0

4 years ago