3 years ago

Help with this puzzle for Brainliest!

Mathematics

1 answer:

OLga [1]3 years ago

3 0

You put the light at different angles

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What is the price per kg of brand X coffee if 5 kg were mixed with 2 kg of brand Y coffee which costs $10/kg to make 7 kg of Kry

hichkok12 [17]

if I answer this, can you answer my question

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3 years ago

An is planning a birthday party for her younger sister at a skating rink. the cost of admission is $3.50 per adult and $2.25 per

Finger [1]

let x be the number of adults
let y be the number of child

3.5 x + 2.25 y = 50

x+ y =20 y = 20 - x

3.5 (20-y ) + 2.25 y = 50

70 - 3.5 y +2.25y =50

70 -1.25 y = 50

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8 0

3 years ago

Plz answer this step by step thank you x^2 + 15x + 56

Schach [20]

Answer:

(x + 7)(x + 8)

Step-by-step explanation:

${x}^{2} + 15x + 56 \\ = {x}^{2} + 8x + 7x + 56 \\ = {x}(x + 8) + 7(x + 8) \\ = \huge \red{ \boxed{ (x + 8)(x + 7)}}$

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4 years ago

What operation do i use to <br> solve 3.18 -16.70

stiks02 [169]

Answer:

subtraction

Step-by-step explanation:

6 0

3 years ago

In ΔRST, the measure of ∠T=90°, RS = 4.9 feet, and ST = 2.7 feet. Find the measure of ∠S to the nearest tenth of a degree.

leva [86]

Step-by-step explanation:

step 1. a diagram is important and can be uploaded. you will get a quicker answer with a diagram

step 2. triangle RST is a right triangle so we can use trigonometry to find <S

step 3. the adjacent side of <S is ST and the hypotenuse is RS so we will use cos

step 4. cosS = adj/hyp = ST/RS = 2.7/4.9

step 5. <S = 56.6° using inverse cos.

6 0

3 years ago

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