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2 years ago

PLS HELP PLS PLS.

Mathematics

2 answers:

pogonyaev2 years ago

7 0

Answer:

Bar C

Step-by-step explanation:

We need to convert all of these to percentages

Bar A => 1/5 = x/100

x = 20

Bar A = 20%

Bar B => 0.22 = 22/100

Bar B = 22%

Bar C => Given

Bar C = 19%

Thus, we see our answer.

Bar C, at 19% protein

Paul [167]2 years ago

5 0

Answer:

Bar C

Step-by-step explanation:

Bar A: 1/5 = 20%

Bar B: 0.22 = 22%

Bar C: 19%

Therefore the bar with the least amount of protein would be Bar C.

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9th out of 10 questions

77julia77 [94]

The last model,

It represents 8/10 or 4/5 which is greater than 3/5

4 0

2 years ago

Read 2 more answers

The area of two similar triangles are 50dm^2 and 32dm^2. The sum of their perimeters is 117dm. What us the perimeters of each of

Kay [80]

Answer:

Perimeter of one triangle is 65 dm

Perimeter of other triangle is 52 dm

Step-by-step explanation:

Please remember the concept

If sides are in the ratio of a:b

Then the area in the ratio of $a^{2} :b^{2}$

It is given sum of their perimeter is 117.

Let the small triangle has perimeter as x.

So, perimeter of big triangle is 117-x.

So, we can set up equation as

$\frac{50}{32} =\frac{x^{2} }{(117-x)^{2} }$

Cross multiply

50(117-x)^2 =32x^2

Expand the left side

50 $(13689 -234x+x^{2} )$ = $32x^{2}$

Distribute the left side

684450-11700x+ $50x^{2}$ = $32x^{2}$

Subtract both sides $32x^{2}$ and rewrite it $18x^{2} -11700x+684450=0$

Solve this quadratic for x.

Divide both sides of the equation by 18 to simplify.

$x^{2}$ -650 x+38025=0

Now, if possible let's factor

Find two integers whose multiplication is 38025 but adds to -650.

-65 and -585 works.

So, we can rewrite it as

(x -65)(x-585) =0

Solve them using zero product property

x=65, x=585

So, x=65 works here.

So, perimeter of one triangle is 65 dm

Perimeter of other triangle is 117-65= 52 dm

5 0

2 years ago

Can someone help me figure this out: Factor 12y^2-27? I keep getting the steps confused.

alukav5142 [94]

Factor out the gcf first.

3(4y^2-9)

The binomial inside is a perfect square so keep factoring.

3(2y+3)(2y-3)

The pair of binomials cannot be further factored so stop there.

8 0

2 years ago

Pls help me asap :(

Andreas93 [3]

x^2-12x+(6)^2 is correct answer

8 0

2 years ago

Casey wants to buy a gym membership. Gym A has a $150 joining fee and costs $35 per month. Gym B has no joining fee and costs $6

MariettaO [177]

Answer:

Step-by-step explanation:

Gym A has a $150 joining fee and costs $35 per month.

Assuming that Casey wants to attend for x months, the cost of using gym A will be

150 + 35 times x months. It becomes

150 + 35x

Gym B has no joining fee and costs $60 per month.

Again, assuming that Casey wants to attend for x months, the cost of using gym B will be

60 × x months = 60x

A) To determine the number of months that it will both gym memberships to be the same, we will equate them.

150 + 35x = 60x

60x - 35x = 150

25x = 150

x = 150/25 = 6

It will take 6 months for both gym memberships to be the same.

B) If Casey plans to only go to the gym for 5 months,

Plan A will cost 150 + 35×5 = $325

Plan B will cost 60 × 5 = $300

Plan B will be cheaper

6 0

2 years ago