Item 3<br> What is the value of the expression?<br><br> -9/16+9/8

CAN SOMEONE HELP ME PLSS IM FAILING AND I RLLY NEED HELP HELP ASAP HELP MATH MATH MATH HELPPPPPPPPPP

Leno4ka [110]

Answer:

Hello if I know the answers to your math questions I'll answer if there already posted I'll check your profile if not please post them thank you!

4 0

3 years ago

You have a total of 42 math and science problems for homework. You have 10 more math problems than science problems. How many pr

elena-14-01-66 [18.8K]

Answer:

number of math problems = 26

number of science problem = 16

Step-by-step explanation:

a total of 42 math and science problems for homework

Let m be the number of math problems and 's' be the number of science problems

$m+s=42$

You have 10 more math problems than science problems

$m=s+10$

substitute s+10 for m in the first equation

$m+s=42$

$s+10+s=42$

$2s+10=42$

subtract 10 from both sides

$2s = 32$

divide both sides by 2

$s= 16$

$m=s+10$

$m=16+10$

$m=26$

number of math problems = 26

number of science problem = 16

3 0

4 years ago

Read 2 more answers

The manufacturer of a CD player has found that the revenue R (in dollars) is R(p)= -4p2+1200p, when the unit price is p dollars.

qaws [65]

Answer: 9000$

Step-by-step explanation:

Let 's use the formula to find the vertex of the parabola:

ax²+bx+c=0

$\displaystyle x_v=-\frac{b}{2a} \\\\ Where :\\\\ y_v- maximum \ \ income \\\\ y_v=a(x_v)^2+bx_v+c \\\\ Then \ in \ \ our \ \ case : \\\\ -4p^2+1200p =0 \\\\ x_v=-\frac{1200}{-4\cdot 2} =150 \\\\ y_v=-4\cdot (150)^2+150\cdot 1200 \\\\ y_v=150\cdot 1200-150\cdot 600 \\\\ y_v=600\cdot 150=\bf 9000 \$