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
Amanda [17]
3 years ago
13

Tatiana had $350 she spent $180 on herself and the rest on presents for her family write an expression to express how much she s

pent on her family please show work.
Mathematics
1 answer:
enyata [817]3 years ago
5 0

350$ total

180$ on herself

170$ on her family

because 350$ was her total whne she started used -180$ on herself subtracting that she is left with 170$ at the end to spent on presents

You might be interested in
Find the volume of a sphere with a surface<br> area of 2,123.72 square meters.
Hunter-Best [27]
V≈0.27
Surface area is 2
4 0
3 years ago
Read 2 more answers
Find two consecutive even numbers such that the difference of one-half the larger and two-fifths the smaller is equal to 38
expeople1 [14]
EXPLANATION

The consecutive even numbers are
370 \: and \: 372

EXPLANATION

Let
x
be the first even number then, the next even number will be,

x + 2

The difference of one-half the larger one and two-fifth the smaller one is 38 gives the equation,


\frac{1}{2} (x + 2) -  \frac{2}{5} x = 38


We multiply through with an LCM of 10 to get,



10 \times \frac{1}{2} (x + 2) - 10 \times  \frac{2}{5} x = 38 \times 10


This simplifies to,


5(x + 2) -  4x = 380


We expand the brackets to get,


5x + 10 - 4x = 380

We group like terms to get,


5x - 4x = 380 - 10



This simplifies to
x = 370

Therefore the next even number is is
372
6 0
3 years ago
Simplify to using laws of exponents<br><br> (-2)^2(-2)^5
MAVERICK [17]

Answer:

-128

Step-by-step explanation:

(-2)^2  *  (-2)^5 <---

First, add the exponents

(-2)^7<----

If you evaluate this you will get

-128

7 0
3 years ago
Read 2 more answers
Solve the quadratic for x, then enter the numerical value of your solution. (If there are two solutions, either one will work.)
xz_007 [3.2K]

Answer: X= -1 OR X= 11

Step-by-step explanation:

Step 1 : Equate ( x-5)² since it occurred twice, hence the reason 2 is added in front of (x-5)²

= (x-5)²

= (x-5)(x-5)

= (x²-5x-5x+25)

= (x²-10x+25)

Step 2: multiply the result by two since it occurs twice and also bring the equation

= 2 (x²-10x+25) +7 = 79

= 2x²- 20x+50+7 = 79

= 2x²- 20x+57 =79

Step 3: most quadratic equation are always equal to zero, let's make this one equal to Zero by subtracting 79 from both sides

= 2x²-20x+57-79 = 79-79

= 2x²-20x-22=0

Step 4: divide the equation by a common number to get the least coefficient of the three coefficients

Dividing the three by 2

(2x²-20x-22)/2 = x²- 10x- 11

Step 5: Factorise completely

Sub step 1 : the first term in the equation is X² which makes the first term coefficient 1; the second term in the equation is -10x which makes the second term coefficient -10, the constant has a coefficient of -11

Sub step 2: multiply the coefficient of the first term (1) and the constant (-11) which gives us (-11)

1*-11 = -11

Sub step 3: Get two numbers in such a way that the addition of the first number and the second number gives the second coefficient in the quadratic equation and the multiplication of the two numbers will give us the product of the first coefficient and the constant.

And the two numbers is +1 and -11, the sum of the two numbers will give us -10 and the product will give us -11.

Step 6: slot the two numbers (+1, -11) into the equation by making themr replace the second coefficient

x²-10x-11=0

= x²+x-11x-11 =0

Step 7: split the equation into two and Factorise further

= (x²+x)(-11x-11) =0

= x(x+1)-11(x+1) = 0

= x+1= 0 or x-11 =0

Step 8 split them into individual equation

= x+1= 0.

Subtract 1 from both sides

= X+1-1=0-1

= x= -1

Or X should be

= x-11=0

Add 11 to both sides

= X-11+11 = 0+11

= x= 11

6 0
3 years ago
Distribute $1000 into three parts so that one part will be three times as large as the second and the third part will be as larg
Over [174]

Answer:

See below

Step-by-step explanation:

x = part 1

3x = part 2

x + 3x  = part 3       summed, they equal 1000

x    +     3x      +   x + 3x = 1000

8x = 1000

<u>x = 125       3x = 385      third part = 500 </u>

3 0
2 years ago
Other questions:
  • Fill in the blank, A speedometer shows the ____ speed of a vehicle.
    7·1 answer
  • Can the numeric value for the area of a circle ever equal the numeric value for the circumference of the same circle? Explain
    15·1 answer
  • Mario earns money mowing his neighbors' lawns. The revenue for mowing x lawns is r(x) = 25x. Mario's cost for gas and the mower
    5·2 answers
  • Tammy bought 36 ounces of nuts at the store. How much is this in pounds?
    8·2 answers
  • 7. Select all the properties that can be
    5·1 answer
  • PLEASE HELP ME ON THE BOTTOM QUESTION PLEASE DONT PLAY AROUND
    8·2 answers
  • Help please.<br> Algebra.
    15·1 answer
  • Order the numbers from least to greatest 5/6, 17/20, 83%
    12·1 answer
  • A square gymnasium floor has an area of 169 m2. <br> Find the perimeter of the gymnasium floor.
    6·1 answer
  • Ninety members of a gym were asked whether or not they use a treadmill when they exercise and whether or not they lift weights w
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!