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
ratelena [41]
4 years ago
9

Evaluate \dfrac14c+3d 4 1 ​ c+3d when c=6c=6 and d=7d=7.

Mathematics
1 answer:
Lubov Fominskaja [6]4 years ago
5 0

Answer:

The value of given expression is 22.5.

Step-by-step explanation:

The given expression is

\frac{1}{4}c+3d

Where, c=6 and d=7.

Substitute c=6 and d=7 in the given expression.

\frac{1}{4}c+3d=\frac{1}{4}\times (6)+3\times (7)

\frac{1}{4}c+3d=\frac{3}{2}+21

\frac{1}{4}c+3d=\frac{3+42}{2}

\frac{1}{4}c+3d=\frac{45}{2}

\frac{1}{4}c+3d=22.5

Therefore the value of given expression is 22.5.

You might be interested in
Which expression is equivalent to square root 55x^7y6/11x^11y^8
Novay_Z [31]

Answer:

\large\boxed{\sqrt{\dfrac{55x^7y^6}{11x^{11}y^8}}=\dfrac{\sqrt5}{x^2y}}

Step-by-step explanation:

\sqrt{\dfrac{55x^7y^6}{11x^{11}y^8}}=\sqrt{\dfrac{55}{11}\cdot\dfrac{x^7}{x^{11}}\cdot\dfrac{y^6}{y^8}}\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\=\sqrt{5x^{7-11}y^{6-8}}=\sqrt{5x^{-4}y^{-2}}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\sqrt5\cdot\sqrt{x^{-4}}\cdot\sqrt{y^{-2}}=\sqrt5\cdot\sqrt{x^{(-2)(2)}}\cdot\sqrt{y^{(-1)(2)}}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt5\cdot\sqrt{(x^{-2})^2}\cdot\sqrt{(y^{-1})^2}\qquad\text{use}\ \sqrt{a^2}=a

=\sqrt5\cdot x^{-2}\cdot y^{-1}\qquad\text{use}\ a^{-n}=\dfrac{1}{a^n}\to a^{-1}=\dfrac{1}{a}\\\\=\sqrt5\cdot\dfrac{1}{x^2}\cdot\dfrac{1}{y}=\dfrac{\sqrt5}{x^2y}

6 0
3 years ago
Henry is paid $11.25 an hour at his job before he pays taxes. However, 28% is subtracted from his wages earned for taxes. How ma
e-lub [12.9K]
The answer is 40 HOURS. Hope this helps!
6 0
3 years ago
Read 2 more answers
Estimate the number of pints in 445 fluid ounces?
Dovator [93]
27.812 us liquid pints
5 0
3 years ago
Determine the value of each unknown variable
Oksi-84 [34.3K]
X=18 and y=10 because they are both 90degree angles therefore all you have to do is solve the equations: 5x=90 and 9y=90.
4 0
3 years ago
What is the area of the triangle?<br> Drag the dot to help you remember the formula.
mariarad [96]
Area of a triangle is 0.5* perpendicular height* base

0.5*4*8

Where four is the perpendicular height and eight is the base

Therefore, area is equal to 16
6 0
3 years ago
Read 2 more answers
Other questions:
  • 3. Social media marketing helps a company increase brand exposure.<br> True<br> False
    7·1 answer
  • (i) Factorise 3(x + 2)^2 - 10(x + 2) + 3
    7·1 answer
  • Find the percent change. Tell whether it is a percent increase or decrease. from 50 to 42
    9·2 answers
  • What is the answer too 3.9 divided by 38.22
    9·2 answers
  • Consider the function represented by 9x+3y= 12 with x as the independent variable. How can this function be written using
    7·1 answer
  • I need help? Show ur work.
    8·2 answers
  • Help! I can’t solve this equation....
    9·1 answer
  • A red die is tossed and then a green die is tossed. What is the probability that the red die shows an even number or the green d
    13·1 answer
  • All rhombus have all sides that are equal in length but which one are rhombus or not. Need help on this. ​
    14·1 answer
  • Find the length of CD shown in red below. Show all work.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!