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mihalych1998 [28]
2 years ago
12

Please help this is for a big test

Mathematics
1 answer:
maksim [4K]2 years ago
8 0
25 is the answer because of the formula adding and subsequently
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A student bought two juice pouches for $1.25 each and 3 bags of chips. The total cost was $5.05. Write and solve an equation to
Nana76 [90]
2(1.25)+3x=5.05
2.5+3x=5.05
3x=2.55
x=0.85
5 0
3 years ago
Read 2 more answers
5. The students are trying to determine the distance between two particular
natali 33 [55]

Answer:

The actual distance between the cities is 211.67 cm.

Step-by-step explanation:

Given:

The map key indicates that 4.5 cm is equivalent to 75 cm.

Now, to find the actual distance between the cities if the cities are 12.7 cm apart on the map.

Let the actual distance be x.

So, we set a proportion to find the actual distance:

4.5:12.7 = 75:x.

<em>Changing into fractions.</em>

\frac{4.5}{12.7} =\frac{75}{x}

<em>By cross multiplication we get:</em>

4.5x=952.5

<em>Dividing both sides by 4.5 we get:</em>

x=211.67

Therefore, the actual distance between the cities is 211.67 cm.

8 0
3 years ago
How do i do this. will give brainliest
Tomtit [17]

Try this option ↓

Step-by-step explanation:

1) according to the condition two angles are equal, then two sides are equal also, it means

2) √x+4=√(5x+4);

3) the 'x' can be calculated if to solve this equation:

\sqrt{x} +4=\sqrt{5x+4};

x+16+8\sqrt{x} =5x+4;

4x-12=8\sqrt{x} ;\ => \ x-2\sqrt{x} -3=0;

\left \{ {{\sqrt{x} =-1} \atop {\sqrt{x} =3}} \right. \ => \ x=9.

4) finally, answer: 9.

4 0
2 years ago
In a survey of 400 seniors, x percent said that they plan on majoring in physics. One university has used this data to estimate
azamat

Answer:

2 percent

Step-by-step explanation:

We can use two separate fractions, one representing the amount of physics majors expected and the amount of seniors expected in physics majors by the university.

\frac{400x}{66} = \frac{400}{3600}

Now cross multiply.

\frac{66*400}{400x * 3600}

x will be removed.

\frac{26400}{1320000}

Simplifying this fraction will get you \frac{1}{50}, which in percentage form, will be 2 percent.

8 0
2 years ago
NEED HELP PLZ!!!!!!!!!!!!!
podryga [215]

Answer:

1st Option is correct

Step-by-step explanation:

Just keep adding 150 to see the results

8 0
3 years ago
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