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3 years ago

I need help on this

Mathematics

1 answer:

Anna11 [10]3 years ago

7 0

Blue 2/10
Reds 4/10
Greens 3/10
Yellow 1/10
Not blue 8/10
Hope this is right

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Mark the text by underlining key words, and then write an expression using variables and/or numbers for each statement.

miskamm [114]

Answer with Step-by-step explanation:

1. b decreased by c squared

$c^2-b$

2. 24 divided by the product of 2 and a

$\dfrac{24}{2\times a}\\\\=\dfrac{24}{2a}$

3. 150 decreased by the quantity of 6 plus b

$(6+b)-150\\\\=6+b-150\\\\=b-144$

4. The sum of twice c and 10

$2c+10$

5. Marlo had $35 but then spent $m.

$35-m$

6. Samantha saved her money and was able to quadruple the original amount, m.

$4\times m=4m$

7. Veronica increased her grade, g, by 4 points and then doubled it.

$2(g+4)=2g+8$

8. Adbell had m pieces of candy and ate 5 of them. Then, he split the remaining candy equally among 4 friends.

$\dfrac{m-5}{4}$

9. To find out how much paint is needed, Mr. Jones must square the side length, s, of the gate and then subtract 15.

$s^2-15$

10. Luis brought x cans of cola to the party, Faith brought dd cans of cola, and De’Shawn brought h cans of cola. How many cans of cola did they bring altogether?

$x+dd+h$

5 0

3 years ago

La suma de dos polinomios de grado 4 siempre da, como resultado, un polinomio de 4

julsineya [31]

No entiendo esto, esta no es una pregunta. Más que un hecho realmente.

6 0

4 years ago

The semiannual tuition payment at a major university is expected to be $30,000 for the 4 years beginning 18 years from now. What

elena-14-01-66 [18.8K]

Answer:

$49,216.78

Step-by-step explanation:

A(n,k) = R[1-(1+i)^-n / i) (1+i)^-k

A = Present value of deferred annuity

R = Payment at the end of period

R = 30,000

i = 0.06 / 2

n = (4)*2 = 8

k = deferred period, (18)*(2) = 36

A(n,k) = 30,000*(1-(1+0.04)-^8 / 0.04)*(1+0.04)^-36

A(n,k) = 30,000*(1-(1.04)^-8 / 0.04)*(1.04)^-36

A(n,k) = 30,000*(1 - 0.730690205/0.04) * 0.24366872185

A(n,k) = 30,000*(0.269309795 / 0.04)*0.24366872185

A(n,k) = 30,000*6.732744875*0.24366872185

A(n,k) = 49216.78014700164

A(n,k) = $49,216.78

So the lump sum payment that the university accept now is $49,216.78

6 0

3 years ago

If 1/4 of the 7th graders got an A on the test and 2/5 of them got a B, that fraction of the students got an A or B?

posledela

Answer: $\dfrac{13}{20}$

Step-by-step explanation:

Given: Fraction of 7th graders got A = $\dfrac14$

Fraction of 7th graders got B = $\dfrac25$

The fraction of the students got an A or B = Fraction of 7th graders got + Fraction of 7th graders got B

$=\dfrac14+\dfrac25\\\\=\dfrac{5+2(4)}{5\times4}\\\\=\dfrac{5+8}{20}\\\\=\dfrac{13}{20}$

Hence, the required fraction: $\dfrac{13}{20}$

5 0

3 years ago

Examine the following table, which represents some points on a line

Lady bird [3.3K]

Answer:

Option (b)

Step-by-step explanation:

Let the points represented by the given table lie on a line.

And the equation of the line is,

y = mx + b

Where m = slope of the line

b = y-intercept

Let the points lying on the line are (0, -2) and (3, -3)

Slope of the line 'm' = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

m = $\frac{-2-(-3)}{0-3}$

m = $\frac{-2+3}{0-3}$

m = - $\frac{1}{3}$

y-intercept 'b' = (-2)

Equation of the line is,

y = $-\frac{1}{3}x-2$

This equation matches with equation given in option (b).

Option (b) will be the answer.

7 0

4 years ago