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
FrozenT [24]
3 years ago
7

-a+b+(-7) a= -8 and b =-2

Mathematics
2 answers:
lianna [129]3 years ago
7 0
It would be: -a + b + (-7)

Substitute for a = -8 and b = -2
-(-8) + (-2) + (-7)
8 - 2 - 7
8 - 9 = -1

In short, Your Answer would be -1

Hope this helps!
Katen [24]3 years ago
6 0
-a+b+(-7)
-(-8)+(-2)+(-7)
8 - 2 - 7
6 - 7
= -1
You might be interested in
Dylan has a square piece of metal that measures 10 inches on each side. he cuts the metal along the diagonal, forming two right
Artemon [7]
You need to use the Pythagorean theory. a² + b² = c². So you would end up with 10²+10²=c². So, 10²=100, therefore you would end up with 200=c². In order to find the length of the hypotenuse, you need to find C. To do this, you need to undo the square and find the square root of 200 and C. So, you would get √200=√c² which would equal 14.1 inches. Then, if needed to check the answer, plug the 10,10,and 14.1 back into the a²+b²=c² and it should make the statement true.
5 0
3 years ago
Mary has $65,000 to invest in two accounts. The first account is a private savings offering 6% annual interest and the second ac
const2013 [10]

Answer:

first account with 6% interest ( x ) = $46000

second account with 4% interest ( y ) = $19000

Step-by-step explanation:

Principal = $65000

first interest rate = 6%

second interest rate = 4%

assuming ; X = money invested in first account ,  Y = money invested in second account

hence :

( 65000 - y ) * 6% + ( 65000 - x ) * 4% = 3520

3900 - 0.06 y  + 2600 - 0.04 x = 3520

0.04 x + 0.06 y = 3900 + 2600 - 3520

0.04 x + 0.06 y = 2980 ----- ( 1)

        x + y = 65000  ------- ( 2 )

solve equation 1 and 2 simultaneously by elimination method

0.04 x + 0.06 y = 2980 ------  ( 3 )

0.06 x + 0.06 y = 3900 ------- ( 4 )

subtract equation 3 form equation 4

0.02 x  = 920 ,   hence x = $46000

therefore y = $65000 - $46000 =  $19000

6 0
3 years ago
Please answer the question in the photo
cestrela7 [59]
30 ( x + 10 = 55 ) hope this
7 0
3 years ago
Read 2 more answers
What simple interest rate is needed for $6,000 to earn $1,000 in 15 months
Mekhanik [1.2K]

let's recall that a year has 12 months, so 15  months is really 15/12 years.

\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill&\$1000\\ P=\textit{original amount deposited}\dotfill & \$6000\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\to \frac{15}{12}\dotfill &\frac{5}{4} \end{cases}

\bf 1000=(6000)r\left( \cfrac{5}{4} \right)\implies 1000=7500r\implies \cfrac{1000}{7500}=r\implies \cfrac{2}{15}=r \\\\\\ \stackrel{\textit{converting that to a percentage}}{\cfrac{2}{15}\cdot 100 = r\implies \cfrac{40}{3}=r}\implies \stackrel{\%~\hfill }{13.\overline{3}}=r

4 0
3 years ago
2. In Geometry
KiRa [710]
The answer to that question is a coordinate.
8 0
3 years ago
Other questions:
  • 1. Mary has a mass of 40 kg and sprints at 1 m/s. How much kinetic energy does she have?
    13·1 answer
  • Please help. I’ll mark you as brainliest if correct!
    8·1 answer
  • What is the negative reciprocal of 7/3?
    14·2 answers
  • What is .4667 as a fraction
    15·1 answer
  • Answer ASAP pleaseeee !!!!
    12·2 answers
  • Ways to end Maltreatment towards women
    6·1 answer
  • Graph the function.<br> g(x)=-1/3(x+2) (x+8)
    11·1 answer
  • 19)
    12·1 answer
  • Find the next three terms in each geometric sequence. -4, 16, -64, ...
    5·1 answer
  • Fixed expenses should
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!