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Jlenok [28]
3 years ago
9

What is the value of x in the equation x – y = 30, when y = 15?

Mathematics
2 answers:
Bess [88]3 years ago
6 0
x-y=30
\\ y = 15
\\ x-15 = 30
\\ (x-15)+15 = 30+15
\\ x = 45
ad-work [718]3 years ago
4 0
Hello, the answer that you should be looking for is 45. when you plug it into the equation you should end up with 45-15=30.

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A belt and a pair of pants cost $490 altogether. A bag costs twice as much
m_a_m_a [10]

Answer:

$196

Step-by-step explanation:

Lets assume,

cost of a belt = 'x'

cost of a pair of pants = 'y'

Now, According to the question;

  1. x + y = 490;
  2. cost of a bag = twice the cost of belt = 2x;
  3. cost of a pair of pants = twice the cost of bag

    ⇒ y = 2×2x ⇔ 4x

hence, by subtituting the values in equation' we get;

⇒ x + 4x = 490

⇒ 5x = 490

⇒ x = 98

So, the difference between the cost of the pair of pants and the bag ;

⇒ y - 2x

⇒ 4x - 2x

⇒ 2x = 2×98 = 196.

6 0
3 years ago
What is 8 5/9+3 5/6+6 4/9
Setler79 [48]

The right answer is 18.8333333... Or 18 7.5/9

4 0
3 years ago
Y=1/2x+3<br> -x+27=-6 <br><br> solve using substitution
Nat2105 [25]

Answer:

y= 19.5    x=33

Step-by-step explanation:

-x + 27= -6

(subtract 27 on both sides)

-x= -33

(divide by negative 1 on both sides)

x= 33

(substitute x into the first equation)

y= 1/2x + 3

y= 1/2(33) +3

y= 16.5 +3

y= 19.5

hope this helps :))

3 0
3 years ago
Look at the picture for the question please show work.
lukranit [14]
A=\dfrac{1}{2}ah\\&#10;a=25 \text{ mm}\\&#10;h=14 \text{ mm}\\\\&#10;A=\dfrac{1}{2}\cdot25\cdot14\\&#10;A=175 \text{ mm}^2 \Rightarrow C
6 0
3 years ago
ANSWER PLS ASAP
iren [92.7K]

if the tins are shown like this:

TIN A: 2:3

TIN B: 4:5

TIN A: can also be shown as 4:6

there for theirs is more blue in the first tin then second tin

7 0
3 years ago
Read 2 more answers
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