Answer:
x = 6
y = -9
Step-by-step explanation:
we have:
7x +2y = 24 equation 1
8x+2y= 30 equation 2
using equation 2 we have:
8x = 30 -2y
x=
equation 3
using equation 3 in equation 1 we have:
7(
)+2y = 24

so we have:
x=
x=
x=6
Answer:
m<ABC=94°
m<BCD=25°
m<ACB=43°
Step-by-step explanation:
To find <mBCD
m<ABD=133°, so m<CBD=133° too.
A triangle is equal to 180°.
22°+133°=155°
80°-155°=25°
To find <mACB
You first need to know triangle ACD measurements.
m<ADC=44° (22°+22°)
Then you take the two 25 and add them.
25°+25°=50°
50°+44°=94°
180°-94°=86°
86°÷2=43°
To find m<ABC
43°+43°=86°
180°-86°=94°
Answer:
6.4
Step-by-step explanation:
she has been riding her bike for 6.4 hours.
3/15=0.2
0.2+1=1.2
1.2*100=120
120%
Hope this helps :)
Answer: £84
Explanation:
84-70=14
14*6=84
6:1
84:14