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Y_Kistochka [10]
3 years ago
12

Solve the equation for y. 8x – 9y = 11

Mathematics
2 answers:
borishaifa [10]3 years ago
6 0

Watch carefully:

                                             <u>8x - 9y = 11</u>

Add  9y  to each side:                    8x = 11 + 9y

Subtract  11  from each side:    8x - 11 = 9y

Divide each side by  9 :        <em>y = 1/9 of (8x - 11) </em>


Aleksandr-060686 [28]3 years ago
3 0
8x-9y=11 subtract 8x from both sides -9y= -8x+11 divide both sides by -9 y= 8/9x-11/9 hope this helps
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James asks 60 pupils which drink they liked best from cola milk and water 32 boys were in the survey 12 of the boys said they li
adelina 88 [10]

Answer:

Students altogether liked cola the best 26

Step-by-step explanation:

Total no of pupils = 60

Boys = 32

girls = 28

we will make a table

Gender         cola             milk               water       total

Boys             12                                         4              32

Girls                                                          9                28

we can find the missing numbers

Let x be for milk

In boys  12 + x + 4 = 32

                 x  = 16

In girls

          as 21 liked milk altogether

so girls = 21 - 16 = 5

Gender         cola             milk               water       total

Boys             12                 16                      4              32

Girls                                   5                      9                28

For cola let y

in girls

y + 5 + 9 = 28

y = 14

Gender         cola             milk               water       total

Boys             12                 16                      4              32

Girls              14                   5                      9            28

Altogether cola = 14 + 12 = 26

8 0
2 years ago
Solve 3.8 = p/3 - 7.2
ziro4ka [17]
19/5=p/3-36/5

Convert the decimals into fractions

15 x 19/5=(p/3-36/5) x 15

Multiply both sides by 15

57=5x-108

5x-108+108=57+108

Add 108 to both sides

5x=165

X=33

Answer

Hope this helps
7 0
3 years ago
A right rectangular prism's edge lengths are 10.5 inches, 5 inches, and 2 inches. How many unit cubes with edge lengths of .5 in
Ede4ka [16]

Answer:

840 cubes

Step-by-step explanation:

First we need to find the volume of each one:

Rectangular prism: Volume = 10.5 * 5 * 2 = 105 in3

Cube: Volume = 0.5 * 0.5 * 0.5 = 0.125 in3

Now, to find how many cubes can fit inside the prism, we just need to divide the volume of the prism by the volume of the cube:

Number of cubes = 105 / 0.125 = 840 cubes

6 0
3 years ago
Simplify 2x+y-3^3+1/2=
tatiyna
The answer is    2x + y - 53/2
7 0
3 years ago
A 6.50% coupon bond with 18 years left to maturity is offered for sale at $1,035.25. What yield to maturity [interest rate] is t
Basile [38]

Answer:

The yield to maturity is 6.3974%

Step-by-step explanation:

The computation of the yield to maturity is as follows

Given that

NPER = 18 × 2 = 36

PMT = $1,035.25 × 6.50% ÷ 2 = $33.65

PV = $1,035.25

FV = $1,000

The formula is shown below:

=RATE(NPER;PMT;-PV;FV;TYPE)

The present value comes in negative

AFter applying the above formula, the yield to maturity is

= 3.1987% × 2

= 6.3974%

Hence, the yield to maturity is 6.3974%

7 0
3 years ago
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