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2 years ago

Please help. It's algebra

Mathematics

1 answer:

spayn [35]2 years ago

7 0

Answer: For the first option it is 28y^2 +31y - 10

Step-by-step explanation: Hope this helps

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Fin the values of x and y, help me

astraxan [27]

Answer:

x = 25 , y = 19

Step-by-step explanation:

Since the triangle has 3 congruent sides then it is equilateral

The 3 angles are also congruent, with each angle = 60° , then

2x + 10 = 60 ( subtract 10 from both sides )

2x = 50 ( divide both sides by 2 )

x = 25

and

3y + 3 = 60 ( subtract 3 from both sides )

3y = 57 ( divide both sides by 3 )

y = 19

3 0

2 years ago

A kilogram of seawater contains 1/40 kg of salt. How much salt is there in two buckets of seawater, which contain 500 liters of

never [62]

Two buckets of seawater contain $13\frac{28}{40}$ kg of salt.

Step-by-step explanation:

Amount of salt in 1 kg water = $\frac{1}{40}\ kg$

It is given that;

1 liter = $1\frac{12}{125} = \frac{137}{125}\ kg$

500 liters = $500*\frac{137}{125} = \frac{68500}{125}$

500 liters = 548 kilogram

As,

1 kg of seawater = $\frac{1}{40}\ kg$ of salt

548 kilograms = $\frac{1}{40}*548$

548 kilograms = $13\frac{28}{40}$ kilograms of salt

Two buckets of seawater contain $13\frac{28}{40}$ kg of salt.

Keywords: unit rate, multiplication

Learn more about multiplication at:

#LearnwithBrainly

5 0

2 years ago

I need help asap plz

leva [86]

Answer: it’s C

Step-by-step explanation: because my teacher told me

4 0

1 year ago

Read 2 more answers

Tree pruning company A charges a one-time $100 equipment fee and charges $50 for each tree that it prunes. Tree pruning company

kobusy [5.1K]

The total cost that a customer should incur in its dealings with company A should be,
c = 50t + 100
For company B
c = 60t + 80
Equating these two charges
c = 50t + 100 = 60t + 80
Thus, the answer is the fourth choice.

8 0

2 years ago

Read 2 more answers

-(1/x+3) +4

nlexa [21]

9514 1404 393

Answer:

left 3 units
up 4 units
shape: lower left image

Step-by-step explanation:

For a parent function f(x), the transformations ...

g(x) = a×f(x -h) +k

cause ...

vertical expansion by 'a', reflection over x-axis if negative
right shift by 'h'
up shift by 'k'

Here, we have parent function f(x) = 1/x with a=-1, h=-3, k=4. Then the transformations are ...

horizontal shift left 3 units

vertical shift up 4 units

reflection over x-axis, so curves are above-left and below-right of the reference point (Note that the reflection is done <em>before</em> the translation.)

4 0

1 year ago