11x + y = -28
Make sure to always remember that you can't have any fractions or decimals in standard form.
Standard form is basically
Ax + By = C
Answer:
I would say 2/3 even though 1/3 is already a rational number.
Step-by-step explanation:
Answer:
Step-by-step explanation:
2)
80 +67 +97+ 98 +85 +72 = 499
499/6=83.1666666667
Average: 83.1666666667
3)
a) <em>97</em> <u>93</u> 92 90 90 <u>90</u> <em>86</em> =90
median of Edgars grades for his midterm is 90
<em>99</em> <u>93</u> 93 89 88 <u>88</u> <em>86</em>
median of Edgars grades for his trimester is 89
7)
(z+9+18)= z+27 (remember don't mix the numbers if they are attached to the x)
(z+18+9)= z+27 (because adding is both ways the same)
a) a + b =b + a
Geometry
1.
a) 6x^2
b)The surface area of a cube = 6a^2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, x is just the length of one side of a cube
c) The unit would be sq(squared) feet
Answer:
1. distance = 275 ft
2. rate = 55 miles/hour
Step-by-step explanation:
April travels at the rate of 25 ft per seconds and the time she spent traveling is 11 seconds. How far she traveled is the distance she covered. The rate or the speed unit is given as ft per seconds. Therefore, the distance covered can be expressed as follows.
rate = distance/time
where
rate = 25 ft/sec
time = 11 secs
rate = distance/time
25 = distance/11
cross multiply
distance = 25 × 11
distance = 275 ft
Isaac drove for 3 hours and he covered a distance of 165 miles. The rate of travel can be expressed as follows
rate = distance/time
distance = 165 miles
time = 3 hours
rate = 165/3
rate = 55 miles/hour
Answer:
$1,679.42
Step-by-step explanation:
Let 
be the amount Kendra invested at 5.5%. Since the amount invested at 7% is twice the amount she invested at 5.5%, she invested 
at 7%.
Remember that 
, where:
is the interest earned
is the principal or initial investment
is the interest rate in decimal form
is the time in years
- For the 5.5% investment:
Let's replace the values in our formula, 
, which simplified is 
- For the 7% investment:
Now, we that the the amount of interest earned combining the two investment is $175.50, so:
She invested $839.71 at 5.5%, and since she invested twice that amount at 7%, she invested 2*($839.71 ) = $1,679.42 at 7% (the higher rate).
