1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
8090 [49]
4 years ago
8

Evaluate this expression for x=2 and y=5.

Mathematics
1 answer:
bija089 [108]4 years ago
8 0

Answer:

B

Step-by-step explanation:

Substitute the given values for x and y into the expression

\frac{20}{5} - \frac{8}{2} + \frac{3(2)(5)}{2+5}

= 4 - 4 + \frac{30}{7}

= 0 + \frac{30}{7}

= \frac{30}{7} = 4 \frac{2}{7}

You might be interested in
Simplify the expression 2(-2x+4-5-3)
uysha [10]

Answer:2 (-2x + 4 - 5 - 3)

2(-2x -4)

-4x - 8

4 0
4 years ago
Help, I'm braindead and don't know what I am doing​
zvonat [6]
A the correct answer is a I hope you get it correct and your doing amazing !
7 0
3 years ago
Prove the diagonal connecting these vertex angles is perpendicular to the diagonal connecting the non-vertex angles
Volgvan
<span>Seg BA is congr to seg BC and seg DA is cong to seg DC by given Seg BD is congr to seg BD by reflexive Tr. BAD is congr to tr. BCD by SSS</span>
7 0
3 years ago
This season, Lisa's lacrosse team has won $\frac 23$ of their home games (games played at Lisa's school), but just $\frac 25$ of
8090 [49]
The team has played 24 home games.

Let h be the number of home games and a be the number of away games.  The total number of games is 49; this gives us
h+a=49

They won 2/3 of the home games and 2/5 of the away games; there were 26 games won.  This gives us
2/3h + 2/5a = 26

In the first equation we isolate h by subtracting a from both sides:
h+a-a=49-a
h=49-a

Substitute this into the second equation:
2/3(49-a)+2/5a = 26

Using the distributive property, we have
2/3*49 - 2/3*a + 2/5a = 26
98/3 - 2/3a + 2/5a = 26

Finding a common denominator to combine like terms, we have
98/3 - 10/15a + 6/15a = 26
98/3 - 4/15a = 26

We want to convert the whole number to thirds as well; 26 = 26*3/3 = 78/3:
98/3 - 4/15a = 78/3

Subtracting 98/3 from both sides:
98/3 - 4/15a - 98/3 = 78/3 - 98/3
-4/15a = -20/3

Divide both sides by -4/15:
a = -20/3 ÷ -4/15
a = -20/3 × - 15/4 = 300/12 = 25

There were 25 away games.

This means there were 49-25 = 24 home games.
3 0
4 years ago
Solving Exponential and Logarithmic Equations In Exercise, solve for x.<br> 100(1.21)x = 110
SVETLANKA909090 [29]

Answer:X=110/121

Step-by-step explanation:

Multiply 100 by 1.21 then by x

121x=110

Divide both side by 121

X=110/121

X=0.91

8 0
3 years ago
Other questions:
  • A basketball player made 40% of the shots she attempted. She made 32 baskets how many shots did she attempt
    13·2 answers
  • I need assistance in this math problem Help Thx.
    14·1 answer
  • What is the measure of angle 2 ?
    7·1 answer
  • I need help finding the answer to <br> -9 - (-4) =
    14·2 answers
  • HELP WILL GIVE BRANLIEST!
    13·1 answer
  • What is the volume in cubic inches of the pyramid shown in the diagram? ​
    12·1 answer
  • A company installs chain-link fencing. The total installation cost is proportional to the number of feet of fence installed. The
    8·1 answer
  • Put these fractions in order from greatest to least:
    10·1 answer
  • A line passes through the points (3,14) and (7,18) Write a linear function rule in terms of x and y for this line, Help! I might
    11·2 answers
  • Look at the graph below. what is the slope of the line a. -3 b.-1/3 c.1/3 d. 3
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!