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3 years ago

10

Can someone please tell me this answer it is for a very major grade and I have 2 weeks of school left and I really wanna pass (1

5+x=20)

2 answers:

Elodia [21]3 years ago

5 0

Answer:

5

Step-by-step explanation:

15+x=20

or, x=20-15

or, x=5

gladu [14]3 years ago

3 0

Answer:

X=5

Step-by-step explanation:

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2<br> y + 7 = 5(x - 3)<br> What is the standard form for this?

lesya [120]

Answer:

y=10/3 i think if that's what youre asking

Step-by-step explanation:

4 0

3 years ago

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The population of a small town is 23,781 and has been continuously declining at a rate of 3.2% each year what is the approximate

timurjin [86]

Same as the car one

A=Pe^(rt)
when it is a decay, make r negative
P=23781 and r=-0.032 and t=17
A=23781e^(-0.032*17)
A=23781e^(-0.554)
A=13803.01
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8 0

4 years ago

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Factorise the following expression using grouping and use binomial products to simplify.

rewona [7]

Answer:

11x-55-5a+ax

11(x-5)+a(x-5)

(11+a)(x-5)

Step-by-step explanation:

First you factor out the common factors

for(11x-55) is would be 11 as both of these figures are the multiple of 11

for(ax-5a) the common factor is a which will be factor out

Then after doing the process you will get

11(x-5)+a(x-5)

then factor out(x-5)which will give you

(11+a)(x-5)

6 0

4 years ago

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At a pet store, for every 4 male birds there are 7 female birds what is the ratio of female birds to male birds

Inga [223]

A - because 4 males : 7 females

3 0

4 years ago

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