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Gre4nikov [31]
3 years ago
15

Sarah has seven apples. Jace has three times as many apples as Sarah. How many apples does Jace have?

Mathematics
2 answers:
ad-work [718]3 years ago
6 0

Answer:

21

Step-by-step explanation:

7x3=21

leonid [27]3 years ago
4 0

Answer:21

Step-by-step explanation:

You can get it srry if that was mean

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Can someone help me x^2 + 3 - 6(3x + 4) i will give brainliest
dangina [55]

Answer:

{x}^{2}  - 18x - 21

Step-by-step explanation:

{x}^{2}  + 3 - 6(3x + 4)

{x}^{2}  + 3 - 18x - 24

{x}^{2}  - 21 - 18x

\boxed{\green{=  {x}^{2}  - 18x - 21}}

8 0
3 years ago
7y-4y+2=<br> What’s the answer?
Kay [80]

Answer:

3y + 2 =

Step-by-step explanation:

7y - 4y = 3y

3y and 2 are not like terms, so you can't add any further

3 0
3 years ago
Read 2 more answers
How many 1 2/3 cup servings are in 15 1/4 cups of salsa
lilavasa [31]

Answer:

9.18

Step-by-step explanation:

1.66/15.25=9.18

6 0
3 years ago
Quick help.<br> Will Mark as Brainliest if my laptop stops acting up.
Dimas [21]
Vertex is now at (-1,5)

for
y=a(x-h)^2+k
vertex is (h,k)
so veertex is (-1,5)

y=a(x-(-1))^2+5
y=a(x+1)^2+5
a is a constant, we will asssume that it is 1 because all the choices have 1

y=1(x+1)^2+5
y=(x+1)^2+5

2nd option
8 0
3 years ago
Element X is a radioactive isotope such that every 51 years, its mass decreases by half. Given that the initial mass of a sample
pychu [463]

Answer: It will take 6 years for 7500 grams of X to reach 6900 grams.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant  

a - x = amount left after decay process  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

51=\frac{0.69}{k}

k=\frac{0.69}{51}=0.0135years^{-1}

b) for  7500 g to reach to 6900 g

t=\frac{2.303}{0.0135}\log\frac{7500}{6900}

t=6years

It will take 6 years for 7500 grams of X to reach 6900 grams.

5 0
3 years ago
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