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3 years ago

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Shelia scores an average of 85 on her first 4 math tests. What is the lowest score that she would have to get on her next math t

est to raise her average to 88

1 answer:

kykrilka [37]3 years ago

5 0

Answer:

91

Step-by-step explanation:

85=last 4 tests

(85+x)/2=88

85+x=176

x=91

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levacccp [35]

Answer:

dorry ahha bleh najchojsakmsznk

Step-by-step explanation:

thx sa points haha

7 0

3 years ago

Read 2 more answers

An atom has 24 protons and 12 neutrons what is the chemical symbol for the atom?

kykrilka [37]

<u>Answer:</u>

The element is Chromium.

<u>Explanation:</u>

The atom has 24 protons and 12 neutrons.

We know that Cr has 24 number of protons, to the Chemical is Cr (Chromium)

Again, we know that the atomic number is the number of protons and the atomic mass is the sum of proton and neutron.

So, the atomic number is 24 and the atomic mass is (24+12)= 36

Therefore, the symbol is $\bold^{36} \mathrm{Cr}_{24}\bold$

4 0

3 years ago

4.85 + c > - 2.55=what

VikaD [51]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

4.85+c >-2.55 Equation/Question

Step 2

4.85 + c > - 2.55 Simplify

4.85 + c > - 2.55

Step 3

4.85 + c > - 2.55 add -4.85 to both sides

answer

c>-7.4

Hope this helps

4 0

3 years ago

What is the equation for the translation of x2 + y2 = 16 seven units to the right and five units up?

mafiozo [28]

Answer:

$(x-7)^2+(y-5)^2=16$ .

Step-by-step explanation:

The given circle has equation $x^2+y^2=16$ .

This is the equation that has its center at the origin with radius 4 units.

When this circle is translated seven units to the right and five units up, then the center of the circle will now be at (7,5).

The equation of a circle with center (h,k) and radius r units is $(x-h)^2+(y-k)^2=r^2$ .

This implies that, the translated circle will now have equation.

$(x-7)^2+(y-5)^2=4^2$ .

$(x-7)^2+(y-5)^2=16$ .

7 0

3 years ago

You are randomly selecting 3 cans of regular and diet cola, but assume that there are 6 cans of regular cola and 7 cans of diet

gayaneshka [121]

Answer:0.367

Step-by-step explanation:

Given

There are 6 cans of regular and 7 cans of diet cola

number of ways of selecting 2 regular colas and 1 can of diet cola is

$\Rightarrow ^6C_2\times ^7C_1$

The total no of ways of selecting 3 items out of 13 items is

$\Rightarrow ^{13}C_3$

Probability is

$\Rightarrow P=\dfrac{^6C_2\times ^7C_1}{^{13}C_3}=\dfrac{105}{286}\\\Rightarrow P=0.367$

6 0

3 years ago