79 / 10 = 7.9
Hope that helps...
Answer:
The radius of each circle is 2.5 units
Step-by-step explanation:
Answer:
x = 8
Step-by-step explanation:
log₅ (10x − 1) = log₅ (9x + 7)
10x − 1 = 9x + 7
x = 8
there were 145 boys on the honor role and 60 girls equally given a total number of 205. This year, the number of boys decreased by 20% = 0.2*145=29
145-29=116
116 is this year number of boys on honor role
For girls.
=0.25*60=15
60-15=45
45 is this year number of girls on honor role.
Total number of students on honor role this year is 116+45 =161
Percentage of decrease = 1 -(161/205)*100% =( 1-0.785)*100
= 0.215*100
= 21.5%
Answer:
the mango cost 1.75$ each and the peach 0.75$
Step-by-step explanation:
M= mango
P=peach
we know that Hudson spend 16$ buying 7 mangos and 5 peaches. So we can write the equation
(1) 16=7M+5P---> (2)P=(16-7M)/5
and we know that Austin spend 14.50 buying 4 mangos and 10 peaches.
we write the equation
(3)14.50=4M+10P
and we replace the P with the equation (2)
14.5=4M+10*(16-7M)/5
14.5=4M+2*(16-7M)
14.5-32=4M-14M
M=1,75$
and now we replace M in eq. (2)P=(16-7*1.75)/5=0.75$