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3 years ago

Please help will mark brainly ! 11 points

Mathematics

1 answer:

pashok25 [27]3 years ago

7 0

Answer:

3/10 > 1/5

Step-by-step explanation:

3/10 = 1.5/5

1/5 = 2/10

3/10 > 2/10

1.5/5 > 1/5

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What is the first step in solving quadratic equations by finding square roots? a. give the positive and negative answer C. b. is

tangare [24]

The first step in solving quadratic equations by finding square roots is; C:square root both sides to isolate x

<h3>How to solve quadratic equations?</h3>

To answer this question, we will take an example of a quadratic equation that we need to find the square root as;

x² = 36

Now, to get the roots which are the values of x, we will first have to take the square root of both sides to Isolate x. Thus;

√x² = √36

x = ±6

Read more about quadratic equations at; brainly.com/question/1214333

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6 0

2 years ago

Chris wanted to know how likely he is to win at his favorite carnival game. He conducted 50 tests and won 15 times. What is the

aleksklad [387]

Answer:

b.) 0.30

Step-by-step explanation:

15/50 = 0.3

3 0

3 years ago

Factorise x²-49<br>please solve this answer

Degger [83]

Answer:

(x+7)(x-7)

Step-by-step explanation:

x²-49

=x²-7²

=(x+7)(x-7)

4 0

3 years ago

Read 2 more answers

Jamar to the local snack shop near his school He bought 3 hotdogs and 2 bags of chips for $Kenny went to the same snack shop and

lilavasa [31]

Answer:

Marcy paid $4.15

Step-by-step explanation:

Given

Represent hotdogs with x and chips with y.

So, we have:

<u>Jamal</u>

$3x + 2y = 4.85$

<u>Kenny</u>

$5x + 6y = 9.55$

<em>See attachment for complete question</em>

Required

Determine the amount for 2x and 3y

From Jamal's and Kenny's orders we have:

$3x + 2y = 4.85$ --- (1)

$5x + 6y = 9.55$ --- (2)

Multiply (1) by 3

$3 * [3x + 2y = 4.85]$

$9x + 6y = 14.55$ --- (3)

Subtract (2) and (3)

$9x - 5x + 6y - 6y = 14.55 - 9.55$

$9x - 5x = 5$

$4x = 5$

Solve for x

$x = \frac{5}{4}$

$x = 1.25$

Substitute $x = 1.25$ in $3x + 2y = 4.85$

$3 * 1.25 + 2y = 4.85$

$3.75 + 2y = 4.85$

Solve for y

$y = \frac{4.85 - 3.75}{2}$

$y = \frac{1.10}{2}$

$y = 0.55$

So, the cost of 2x and 3y is:

$Cost = 2x + 3y$

$Cost = 2*1.25 + 3*0.55$

$Cost = \$4.15$

7 0

3 years ago

Each hotdog cost $1.50 and sodas cost $.50. At the end of the day you made a total of $78.50.You sold a total of 87 hot dogs and

Bond [772]

Answer:

The number of hot dogs sold was 35 and the number of sodas sold was 52

Step-by-step explanation:

Let

x ----> the number of hot dogs sold

y ----> the number of sodas sold

we know that

$x+y=87$

$x=87-y$ ----> equation A

$1.50x+0.50y=78.50$ ----> equation B

Solve the system by substitution

substitute equation A in equation B

$1.50(87-y)+0.50y=78.50$

solve for y

$130.50-1.50y+0.50y=78.50$

$1.50y-0.50y=130.50-78.50$

$y=52\ sodas$

<em>Find the value of x</em>

$x=87-52=35\ hot dogs$

therefore

The number of hot dogs sold was 35 and the number of sodas sold was 52

7 0

3 years ago