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
OLEGan [10]
3 years ago
6

Evaluate 3x-4y when x=5 and y=-1

Mathematics
1 answer:
balandron [24]3 years ago
8 0

Answer:

19 is the answer

Step-by-step explanation:

3x - 4y

= <em>3</em><em> </em><em>×</em><em> </em><em>5</em><em> </em><em>-</em><em> </em><em>4</em><em> </em><em>×</em><em> </em><em>(</em><em>-1</em><em>)</em>

= <em>1</em><em>5</em><em> </em><em>+</em><em> </em><em>4</em><em> </em>

= <em>1</em><em>9</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>answer</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>you</em><em> </em>

You might be interested in
Mustafa’s horse ate 6,400 pounds of hay last year. How could Mustafa determine the number of tons of hay his horse ate last year
Alona [7]

Answer:

by dividing 6,400 by 2,000

Step-by-step explanation:

We know that 2000 pounds  equals 1 ton

To convert 6400 pounds to tons, we need to

6400 pounds * 1 ton/2000 pounds

Divide 6400 by 2000

3 0
3 years ago
Highest comman factor of 200 and 240
Schach [20]

Answer:

40

Step-by-step explanation:

GCF of 200 and 240 is 40

4 0
3 years ago
Read 2 more answers
Kohl's sells casual shirts for $9 and Poles shirts for $18. Total sales $1080, and customers bought 4 times as many casual as po
lbvjy [14]
If we assume the number of polo shirts have been sold is x, the number of casual shirts have been sold will be 4x.
x*18+4x*9=$1080
(18+36)x=$1080
54x=$1080
x=20

The number of casual shirts have been sold is 4*20=80

6 0
3 years ago
Find the equation of the line that is perpendicular to y=-2x-9 and contains the points (8,-4)
avanturin [10]

The slope of the given line is -2, and since perpendicular lines have negative reciprocal slopes, the slope of the line we want to find is 1/2.

Substituting into point-slope form,

y+4=\frac{1}{2}(x-8)\\\\y+4=\frac{1}{2}x-4\\\\\boxed{y=\frac{1}{2}x-8}

6 0
2 years ago
a 5-gallon mixture contains 40% acid. A 3-gallon mixture contains 50% acid. what percent acid is obtained by putting the two mix
natta225 [31]

so the 5 gallons ones is 40% acid, how much acid solute is in it anyway? well just 40% of 5 or namely 0.4*5 = 2 gallons.

the 3 gallons one is 50%, likewise it has 0.50 * 3 = 1.5 gallons of acid solute in it.

\begin{array}{lcccl} &\stackrel{solution}{quantity}&\stackrel{\textit{\% of }}{amount}&\stackrel{\textit{gallons of }}{amount}\\ \cline{2-4}&\\ \textit{1st mixture}&5&0.4&\stackrel{(5)(0.4)}{2}\\ \textit{2nd mixture}&3&0.5&\stackrel{(3)(0.5)}{1.5}\\ \cline{2-4}&\\ mixed&8&p&3.5 \end{array} \\\\\\ 8p=3.5\implies p=\cfrac{3.5}{8}\implies p=0.4375\implies p=\stackrel{\%}{43.75}

8 0
2 years ago
Other questions:
  • Please help me! See attached file on the side or up top where ever it is
    9·2 answers
  • Use the following information to complete parts I, II and III.
    7·1 answer
  • List The partial products of 35 times 7.
    11·2 answers
  • Which expression correctly represents "nine less than the quotient of a number and four, increased by three"?
    6·1 answer
  • Please hurry
    10·2 answers
  • What is the volume of this sphere?
    9·1 answer
  • Which angles!!! Need answers 40% of my grade please and thank you
    14·1 answer
  • 1.
    9·1 answer
  • The probability of rolling a sum of 5 from a pair of dice is. What are your odds in favor of rolling a sum of 5?
    15·1 answer
  • Solve for x GraceRosalia:<br>2x + 24 = 36 - x​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!