Math Help

RealLifeMama · 12-08-2021, 08:34 AM

I am trying to figure out what grade my child needs to earn on his final exam in order to get a B in his class.
The final is 15 percent of his grade.
He currently has a 91.
I tried doing the math the way I thought it should be done, but the way I did it, he could get a failing grade on the exam and still get a B. That does not seem right to me.

I did (91)(.85) + .15x = grade he wants and solved for x.
That seems too simplistic.
Help?

rdsmommy · 12-08-2021, 08:43 AM

It looks right to me. He only needs 3 out of 15 points to get a B. Which is like a 20 on the exam.

---------- Post added at 09:43 AM ---------- Previous post was at 09:40 AM ----------

It looks like he could get an A with a grade of 84.

ECingMama · 12-08-2021, 09:18 AM

We are having lots of conversations on this right now. Do you want to keep your A, B, or C, my child? You need to do X in the next 8 days. (some of her teachers are ending the semester next week. some aren't ending it until it's officially over in mid-January.

)

Soliloquy · 12-08-2021, 11:49 AM

That looks right to me, also. In some classes the final exam can make it break your, in others it hardly matters.

If he got a zero on the exam, he'd have a 77 for his final grade. So even a 50 would mean an 84.

tempus vernum · 12-11-2021, 01:42 PM

Do you know the scale? Or did I miss something?

for my high school child it’s no longer 90+=A, 80+=B... and in college my kid needed a 90 to pass some classes.

However my experience in life rings true to what Lisa said. My high schooler missed an exam and still Has a B+ in a Class that offers extra credit

.

RealLifeMama · 12-11-2021, 02:05 PM

I don't!
It is for his dual enrollment English.
He got a 93 on his final, which was actually a paper.
He is thrilled.
I was assuming 90 was an A, but maybe it is not

12-08-2021, 08:34 AM	#1
RealLifeMama Rose Garden Join Date: Mar 2005 Posts: 18,256	Math Help I am trying to figure out what grade my child needs to earn on his final exam in order to get a B in his class. The final is 15 percent of his grade. He currently has a 91. I tried doing the math the way I thought it should be done, but the way I did it, he could get a failing grade on the exam and still get a B. That does not seem right to me. I did (91)(.85) + .15x = grade he wants and solved for x. That seems too simplistic. Help? __________________ A, Mother of Dancing Diva, 21 Boy Wonder 19, Mr. Cool 15, and Ninja 13 Sunshine, 11, and 8 year old Joy

12-08-2021, 08:43 AM	#2
rdsmommy Rose Trellis Join Date: Jun 2009 Location: Texas Posts: 1,506	Re: Math Help It looks right to me. He only needs 3 out of 15 points to get a B. Which is like a 20 on the exam. ---------- Post added at 09:43 AM ---------- Previous post was at 09:40 AM ---------- It looks like he could get an A with a grade of 84.

12-08-2021, 09:18 AM	#3
ECingMama Rose Garden Join Date: Aug 2009 Posts: 16,750	Re: Math Help We are having lots of conversations on this right now. Do you want to keep your A, B, or C, my child? You need to do X in the next 8 days. (some of her teachers are ending the semester next week. some aren't ending it until it's officially over in mid-January. ) __________________ ENFp Wife who is thankful to be in love....17 years Homeschooling Mom of three....15 DD dancer and 12 DS mountain biker and 5 DD calico critter and dolly mommy 12/2014 8/2015 11/2015 9/2016

12-08-2021, 11:49 AM	#4
Soliloquy Rose Garden Why climb a mountain? Because it's there! Join Date: Mar 2005 Location: Selkirk Mountains Posts: 52,860	Re: Math Help That looks right to me, also. In some classes the final exam can make it break your, in others it hardly matters. If he got a zero on the exam, he'd have a 77 for his final grade. So even a 50 would mean an 84. Last edited by Soliloquy; 12-08-2021 at 11:51 AM.

12-11-2021, 01:42 PM	#5
tempus vernum Rose Garden I am the mountain. I am not the storm and the storm is not me. -Ian Cron Join Date: Mar 2005 Posts: 28,913	Re: Math Help Do you know the scale? Or did I miss something? for my high school child it’s no longer 90+=A, 80+=B... and in college my kid needed a 90 to pass some classes. However my experience in life rings true to what Lisa said. My high schooler missed an exam and still Has a B+ in a Class that offers extra credit . __________________ ~Spring always comes after winter~ 2 Corinthians 4:16 “ Therefore we do not lose heart. Though outwardly we are wasting away, yet inwardly we are being renewed day by day. ”

12-11-2021, 02:05 PM	#6
RealLifeMama Rose Garden Join Date: Mar 2005 Posts: 18,256	Re: Math Help I don't! It is for his dual enrollment English. He got a 93 on his final, which was actually a paper. He is thrilled. I was assuming 90 was an A, but maybe it is not __________________ A, Mother of Dancing Diva, 21 Boy Wonder 19, Mr. Cool 15, and Ninja 13 Sunshine, 11, and 8 year old Joy

X vBulletin 3.8.3 Debug Information
Page Generation 0.34849 seconds Memory Usage 7,934KB Queries Executed 14 (?)
More Information
Template Usage: (1)SHOWTHREAD (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)ad_showthread_beforeqr (1)cyb_flashimagebanners (1)footer (1)forumjump (1)forumrules (1)gobutton (1)header (1)headinclude (1)navbar (3)navbar_link (60)option (6)post_groan_box (1)post_groan_javascript (1)post_groan_navbar_search (6)post_thanks_box (1)post_thanks_box_bit (1)post_thanks_javascript (1)post_thanks_navbar_search (1)post_thanks_postbit_legacy (6)postbit_legacy (6)postbit_onlinestatus (66)postbit_reputation (6)postbit_wrapper (4)showthread_bookmarksite (1)showthread_list (1)smqre_editor_button (1)spacer_close (1)spacer_open (1)tagbit_wrapper Phrase Groups Available: global inlinemod postbit posting reputationlevel showthread	Included Files: ./showthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/functions_notice.php ./mobiquo/smartbanner.php ./mobiquo/include/classTTConnection.php ./mobiquo/smartbanner/head.inc.php ./includes/functions_bigthree.php ./includes/class_postbit.php ./includes/class_bbcode.php ./includes/functions_reputation.php ./includes/adminfunctions_template.php ./includes/functions_misc.php ./includes/functions_threadedmode.php ./includes/functions_post_thanks.php ./includes/functions_post_groan.php Hooks Called: init_startup cache_permissions fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates fetch_musername notices_check_start global_setup_complete showthread_start template_groups template_safe_functions template_compile showthread_getinfo forumjump showthread_post_start showthread_query_postids_threaded showthread_threaded_construct_link showthread_query bbcode_fetch_tags bbcode_create showthread_postbit_create postbit_factory postbit_display_start post_thanks_function_post_thanks_off_start post_thanks_function_post_thanks_off_end post_thanks_function_fetch_thanks_start post_thanks_function_fetch_thanks_end post_thanks_function_thanked_already_start post_thanks_function_thanked_already_end post_groan_function_post_groan_off_start post_groan_function_post_groan_off_end post_groan_function_fetch_groans_start post_groan_function_fetch_groans_end post_groan_function_groaned_already_start post_groan_function_groaned_already_end reputation_image bbcode_parse_start postbit_imicons bbcode_parse_complete_precache bbcode_parse_complete postbit_display_complete error_fetch post_thanks_function_fetch_thanks_bit_start post_thanks_function_show_thanks_date_start post_thanks_function_fetch_thanks_bit_end post_thanks_function_fetch_post_thanks_template_start post_thanks_function_fetch_post_thanks_template_end tag_fetchbit_complete forumrules showthread_bookmarkbit navbits navbits_complete showthread_complete
Messages: